In C++

You will create 3 files: The .h (specification file), .cpp (implementation file) and main file. You will practice writing class constants, using data files. You will add methods public and private to your BankAccount class, as well as helper methods in your main class. You will create an arrayy of objects and practice passing objects to and return objects from functions. String functions practice has also been included. You have been given a template in Zylabs to help you with this work. The data file is also uploaded.

1. Extend the BankAccount class. The member fields of the class are: Account Name, Account Id, Account Number and Account Balance. The field Account Id (is like a private social security number of type int) Convert the variables MIN_BALANCE=9.99, REWARDS_AMOUNT=1000.00, REWARDS_RATE=0.04 to static class constants Here is the UML for the class:

2. Create a file called BankAccount.cpp which implements the BankAccount class as given in the UML diagram above. The class will have member variables( attributes/data) and instance methods(behaviours/functions that initialize, access and process data)
3. Create a driver class to do the following:
   1. Read data from the given file BankData.data and create and array of BankAccount Objects

The order in the file is first name, last name, id, account number, balance. Note that account name consists of both first and last name

2. Print the array (without secret id) similar to Homeowork2 EXCEPT the account balance must show only 2 decimal digits. You will need to do some string processing.
3. Find the account with largest balance and print it
4. Find the account with the smallest balance and print it.
5. Determine if there are duplicate accounts in the array. If there are then set the duplicate account name to XXXX XXXX and rest of the fields to 0. Note it’s hard to “delete” elements from an array. Or add new accounts if there is no room in the array. If duplicate(s) are found, print the array.

Create BankAccount.h.

This is given for BankAccount.cpp:

#include <string>
#include <iostream>
#include "BankAccount.h"

// BankAccount::BankAccount();

BankAccount::BankAccount(std::string accountName, int id, int accountNumber, double accountBalance){
//

}
//getters
  
std::string BankAccount::getAccountName(){
//
}
int BankAccount::getAccountNumber(){
//
}
double BankAccount::getAccountBalance(){
//
}
  
void BankAccount::setAccountBalance(double accountBalance){
//
}
std::string fixPoint(std::string number){
//adjust the two decimal places
}
std::string BankAccount::toString(){

}

bool BankAccount::withdraw(double amount){

//
}
  
void BankAccount::deposit(double amount){
//
}

This is given for main.cpp:

#include <iostream>
#include <fstream>
#include <string>
#include //your header file

using namespace std;
const int SIZE = 8;
void fillArray (ifstream &input,BankAccount accountsArray[]);
int largest(BankAccount accountsArray[]);
int smallest(BankAccount accountsArray[]);
void printArray(BankAccount accountsArray[]);
int main() {

//open file
//fill accounts array
//print array
//find largest
//find smallest
//find duplicates and print if necessary
BankAccount accountsArray[SIZE];
  
fillArray(input,accountsArray);
printArray(accountsArray);
cout<<"Largest Balance: "<<endl;
cout<<accountsArray[largest(accountsArray)].toString()<<endl;
cout<<"Smallest Balance :"<<endl;
cout<<accountsArray[smallest(accountsArray)].toString()<<endl;
}
}
void fillArray (ifstream &input,BankAccount accountsArray[]){

}

int largest(BankAccount accountsArray[]){
//returns index of largest account balance
}
int smallest(BankAccount accountsArray[]){
//returns index of smallest

}
BankAccount removeDuplicate(BankAccount account1, BankAccount account2){

return (account1.equals(account2));

}
void printArray(BankAccount accountsArray[]){
cout<<" FAVORITE BANK - CUSTOMER DETAILS "<<endl;
cout<<" --------------------------------"<<endl;
//print array using to string method

}

file "BankData.dat" contains:

Matilda Patel 453456 1232 -4.00
Fernando Diaz 323468 1234 250.0
Vai vu 432657 1240 987.56
Howard Chen 234129 1236 194.56
Vai vu 432657 1240 -888987.56
Sugata Misra 987654 1238 10004.8
Fernando Diaz 323468 1234 8474.0
Lily Zhaou 786534 1242 001.98

Debug the following program.Each line that has a number and line at the end of it has an error. The error can be syntax or logic. Correct the error. Rewrite the correct answer in place of the original code :

private void btnCalculate_Click (object sender, System.EventArgs e)

{

intLimit = zero; //

intCounter == 1; // counter need to begin at 1

lstResults.Items.Empty(); // clear ListBox

intLimit = Int32.Parse( txtInput); // retrieve user input from GUI

lstResults.Items.Add( "N/tN^2/tN^3" ); // add header with tabs

calculate and display square and cube of 1 to intLimit

while ( intCounter <= intLimit ) ;

lstbx.Items.Add( intCount = "\t" + Math.Pow( intCount, 2 );

Math.Pow( intCount 3^ );                   

intCount++;                                                        // increment counter

}

Convert 0xCD001234 from IEEE-754 hexadecimal to single-precision floating point format.
Please show every single detail for upvote.
Please do not answer otherwise.

a style sheet was not new with HTML and even today other languages use a similar approach. JavaFX uses an almost identical style definition as CSS for its style sheets. .NET's Windows Presentation Foundation (WPF) uses an XML like style definition in a language named XAMLAll these different technologies have one thing in common: they separate what is being displayed from how it is being displayed. Why? What is the benefit of doing so, if any? What are the drawbacks, if any? For those of you who may have taken a software architecture/engineering class, the style sheet follows a, currently, very popular architecture, do you know what it is?

120 WORDS MINIMUM

Scenario
Create an algorithm to solve the maximum subarray problem. Find the non-empty, contiguous subarray of the input array whose values have the largest sum. You can see an example array with the maximum subarray indicated in the following diagram:

Screen Shot 2019-01-07 at 10.58.06 AM.png
The O(n2) brute force algorithm that tests all combinations for the start and end indices of the subarray is trivial to implement. Try to solve this using the divide and conquer algorithm.

Aim
To design and implement an algorithm to solve the maximum subarray problem with a better runtime than the O(n2) brute force algorithm, using a divide and conquer approach.

Prerequisites
You need to implement the maxSubarray() method of the MaximumSubarray class in the source code, which returns the sum of values for the maximum subarray of the input array. Assume that the sum always fits in an int, and that the size of the input array is at most 100,000.

public class MaximumSubarray {
public Integer maxSubarray(int[] a) {
return null;
}
}
The divide and conquer approach suggests that we divide the subarray into two subarrays of as equal size as possible. After doing so, we know that a maximum subarray must lie in exactly one of following three places:

Entirely in the left subarray
Entirely in the right subarray
Crossing the midpoint
Steps for Completion
The maximum subarray of the arrays on the left and right is given recursively, since those subproblems are smaller instances of the original problem.
Find a maximum subarray that crosses the midpoint.

C#

What to submit:

One zip file named Ass3.zip

This zip must contain one VS 2017 solution named Ass3, which contains one C# Windows Forms App project also named Ass3 and the project contains a default form, Form1.cs and Program.cs.

No change should be made in Program.cs, but your Form1 must be designed and implemented to satisfy the following requirements.

**Do not submit only a single file of the solution or project. The whole solution folder of VS 2017 must be zipped and submitted for grading.

Requirements:

1. Use VS 2017 to create a C# Windows Forms App project whose solution and project are named Ass3. When all requirements below are finished and tested, zip the entire solution as Ass3.zip and upload it for grading.
2. Use the same Functional Requirement as described in Assignment 2 with the changes below.
3. Except the Form1 class given by Visual Studio, no other classes need to be defined. That is, the program you did in Assignment 2, including data and methods of the two classes should be "transplanted" in the Form1 class of this Ass3 project.
4. All input and output should be done within Form1 and visual controls (e.g., textboxes, labels, buttons, etc.) on the form. That is, no console is used--no more command line I/O and no display in the Command Prompt.
5. Specifically, the two initial integers and each guess should be entered in a corresponding textbox (i.e., three textboxes in total) and the error message "You must enter a number between ... and ...!" will be displayed by a label in red. A second label should be used to display in blue the hint "Higher...", "Lower...", and "You win!". Finally, let the ending message "----End of Game----" be displayed in the form title (in black since title color cannot be changed).
6. Set the font size of all visual controls to be 18 points.
7. Add a button showing 'Generate Secrete Number' to create a secrete number every time it is clicked. Because this button can be clicked at any time, there might be an error or hint displayed from the previous play, this button should also erase both labels to empty and reset the form title to 'Form1' when clicked.
8. To accept a guess, a second button showing 'Guess' should be added on the form. Each time when it is clicked, it first erases the labels from their previous display and then show the error and/or hint message, depending on the guess entered.
9. Place each visual control in Form1 so they look like the form shown in the demo program attached below.
10. Same as in Assignment 2, we assume there are always two valid input integers entered to define the range of the random secrete number, and an integer is always entered as the guess value. That means there is no need to validate all three input integers except the guess value could still be out of the range, which explains (in item 5 above) why an error message needs to be displayed.

Discuss how a malware can maintain persistence. What do malwares use the SetWindowsHookEx function for?

Do not use awk.

Using the fixed length field file called famous.dat, make a one-line Unix command - using pipe(s) - to display an alphabetical list of the last and first names in upper case of the last 8 people in the file. Hint: Names are in columns 6 through 35. Output is this..

DARWIN         CHARLES      
EINSTEIN       ALBERT       
GALILEO        GALILELI     
GOLDMAN        EMMA         
LOVELACE       ADA          
MANDELA        NELSON       
PARKS          ROSA         
RUSSELL        BERTRAND

Hint:  famous.dat uses space(s) to separate the fields

This is a javascript assignment/study guide for an exam. There are 25 steps that are outlined by // comments...

<html>
<head>
<style type="text/css">
body {font-family:Comic Sans MS;}
</style>
<script language="javascript">
<!--
function fred()
{
//
// There are 25 questions related to the HTML objects shown on the page
// They are all in the form named "twocities".
//
// Each part of the assignment below instructs you to manipulate or examine
// the value of the HTML elements and place an answer in one
// of twenty-five span blocks that appear on this page.
//
// e.g., for span block named "ans1" you will say:
//
// ans1.innerHTML = "some string";
//
//
// the questions 1 through 15 below use the string value from the textarea named "begins"
// stored in a variable named "beg" like this:

beg=document.twocities.begins.value;
len_beg=beg.length;
//
// *** First remove all the periods, commas and hyphens from the "beg" string before you answer questions 1 through 15
//

//
// ***(1) how many words are the string named "beg"? (words not characters)
// *** show the answer in the span block with id = "ans1"
//

//
// ***(2) store words in the string "beg" in an array.
// *** show the first and last elements of the array in the span block with id="ans2"
//

//
// ***(3) show each word in the array produced in (2) above on one line separated by commas
// *** in the span block with id="ans3"
//

//
// ***(4) create a new string using the value of "beg" where all the characters are capitalized
// *** show the new string in the span block with id="ans4"
//

//
// ***(5) count the number of times the letters "a", "e", "i", "o", "u" appear in the string "beg"
// *** show these 5 counts on one line separated by commas in the span block with id="ans5"
//

//
// ***(6) show the location of each occurence of the character "e" in the string "beg"
// *** on one line separated by commas in the span block with id="ans6"
//

//
// ***(7) show the location where each word begins in the string named "beg"
// *** show the answers on one line separated by commas in the span block with id="ans7"
//

//
// ***(8) place the words in the string "beg" in a table with a one pixel border,
// *** with a gray backgound. Use only ten cells per row. Empty cells should contain
// *** the word "null". Show the table in the span block with id="ans8"
//

//
// ***(9) replace each occurence of the blank character in "beg" with the character "*"
// *** show the result in the span block with id="ans9"
//

//
// ***(10) sort the words in array created in (2) into alphabetical order
// *** show the results in the span block with id="ans10" on a single line
//

//
// ***(11) show the ASCII character number of each character in the string "beg"
// *** separate each value with a comma and place the result on a single line in the span block
// *** with id="ans11"
//

//
// ***(12) count the number of words in the string "beg" that have 2,3,4,5 or 6 characters
// *** show these five counts on a single line separated by commas in the span block with id="ans12"
//

//
// ***(13) create a new string that contains the words in the string "beg" in reverse order
// *** show this new string on a single line in the span block with id="ans13"
//

//
// ***(14) create a new string that contains the characters in the string "beg" in all capital letters
// *** show this new string on a single line in the span block with id="ans14"
//

//
// ***(15) store the number of times the letter "a" appears in the string "beg" in 1st location;
// *** store the number of times the letter "b" appears in the string "beg" in 2nd location;
// *** store the number of times the letter "c" appears in the string "beg" in 3rd location;
// *** store the number of times the letter "d" appears in the string "beg" in 4th location;
// *** etc.
// *** show the 26 counts on one line separated by commas in the span block with id="ans15"
//

//
// ***(16) Examine the radio buttons and produce a list of the three "values" of the radios buttons separated by commas on a single line
// in the span block with id="ans16"

//
// ***(17) Show the value of the radio button which is checked and its elements number separated by a comma on a line by itself
// *** in the span block with id="ans17"
//

//
// *** (18) Show the elements number and value of the six checkboxes in a six-row, two-column table with a 2 pixel border
// *** in the span block with id="ans18"
//

//
// ***(19) Examine the checkboxes and produce a list of the "values" of the checkboxes that are checked. Separated the values by commas on a single line
//

//
// ***(20) Show the values of all the options in the select (drop down menu) named "book3chapters" in an fifteen-column one row table with a 2 pixel border border
// *** in the span block with id="ans20"
//

//
// ***(21) Show the value of the select (drop down menu) named "book3chapters" which is selected and its selectedIndex value separated by a comma on a line by itself
// *** in the span block with id="ans21"
//

//
// *** Retrieve the value of the textarea named "beg" again and store it in a variable named "beg2", DO NOT REMOVE ANY CHARACTERS
// *** You will use this string for questions 22 and 23

//
// *** (22) Show the text phrases that are separated by commas in the string "beg2" . Each phrase should be on a line by itself.
// *** Place the result in the span block with id="ans22"
//

//
// *** (23) Capitalize the first letter of each phrase from #22 bove (phrases are separated by commas) in the original string "beg2".
// *** Place each phrase should be on a line by itself.
// *** Place the result in the span block with id="ans23"
//
//
// *** (24) Make the third radio button ("The Track of The Storm") checked.
// *** Make ALL six of the checkboxes be checked.
// *** Make the select named "book3chapters" (the drop down menu) show "Fifty-Two" as the selection
// *** Place the string "DONE!" in the span block with id="ans24"

//
// *** (25) Place the famous last line of the book (without quotes) in the span block with id="ans25"
//

}
-->
</script>
</head>
<body>
<CENTER>
<TABLE border="2" width="100%">
<TR><TD width="120" valign="middle" align="center" bgColor="#bbbbbb"><center><IMG align="top" alt="capt webb" border=2 src="captsm.gif"><BR><span STYLE="font-size:8px">Capt. Horatio T.P. Webb</span></center></TD>
<TD valign="middle" bgColor="#bbbbbb" colSpan="2" align="center"><center><B>ASSIGNMENT #1 Javascript<br>MIS 3371 Transaction Processing I<BR>Parks -- Spring 2016</B><BR><span STYLE="font-size:10px">Version 1 -- Last Updated 9:00 AM 1/12/2016</span></center></TD></TR></table></center>
The text used in this assignment is from Charles Dicken's novel "A Tale of Two Cities" written in 1859<br>Read it at the free online book site:<br>Project Gutenberg: <a href="http://www.gutenberg.org/cache/epub/98/pg98.txt">http://www.gutenberg.org/cache/epub/98/pg98.txt</a>
<form name="twocities">
<p>All the HTML elements below are in a form named "twocities". View "Source" to see the 25 questions.
<p>
<table border="1" cellspacing="0" width="100%">
<tr><td valign="top">1. The textarea below is named <b>begins</b><br>It contains the opening text of the book (form elements number 0)
<br><textarea style="margin:6px;" name="begins" rows="10" cols="80">It was the best of times, it was the worst of times,
it was the age of wisdom, it was the age of foolishness,
it was the epoch of belief, it was the epoch of incredulity,
it was the season of Light, it was the season of Darkness,
it was the spring of hope, it was the winter of despair,
we had everything before us, we had nothing before us,
we were all going direct to Heaven, we were all going direct the other way --
in short, the period was so far like the present period,
that some of its noisiest authorities insisted on its being received,
for good or for evil, in the superlative degree of comparison only.</textarea></td>
<td valign="top">2. The novel "A Tale of Two Cities" is divided into 3 books named below.<br>
There are 3 radio buttons below are named: <b>books</b><br>(form elements 1 &rarr; 3).
<br>Their values are: "1", "2" and "3"
<p><input type="radio" name="books" value="1" checked> Recalled To Life&nbsp;
<br><input type="radio" name="books" value="2"> The Golden Thread&nbsp;
<br><input type="radio" name="books" value="3"> The Track of The Storm&nbsp;
</td>
</tr>
<tr><td valign="top">3. The titles of the six chapters of the first book are shown below.
<br>The 6 checkboxes below are named: <b>c1</b> &rarr; <b>c6</b> (form elements 4 &rarr; 9). <br>
Their values are the same as the text that appear to the right of each checkbox.
<br>&nbsp;<input type="checkbox" name="c1" value="The Period">The Period
<br>&nbsp;<input type="checkbox" name="c2" value="The Mail" checked>The Mail
<br>&nbsp;<input type="checkbox" name="c3" value="The Night Shadows">The Night Shadows
<br>&nbsp;<input type="checkbox" name="c4" value="The Prepartion" checked>The Preparation
<br>&nbsp;<input type="checkbox" name="c5" value="The Wine Shop">The Wine-shop
<br>&nbsp;<input type="checkbox" name="c6" value="The Shoemaker" checked>The Shoemaker</b>
</td><td valign="top">4. The select (drop down menu) below is named <b>book3chapters</b>
<br>(form elements number 10).
<br>The fifteen options are the titles of the fifteen chapters in Book 3.
<br>The values of the 15 options are the same as the option text shown on the select below:
<p>
<select name="book3chapters">
<option value="In Secret">In Secret
<option value="The Grindstone">The Grindstone
<option value="The Shadow">The Shadow
<option value="Calm in Storm">Calm in Storm
<option value="The Wood-sawyer">The Wood-sawyer
<option value="Triumph">Triumph
<option value="A Knock at the Door">A Knock at the Door
<option value="A Hand at Cards">A Hand at Cards
<option value="The Game Made">The Game Made
<option value="The Substance of the Shadow">The Substance of the Shadow
<option value="Dusk">Dusk
<option value="Darkness">Darkness
<option value="Fifty-two">Fifty-two
<option value="The Knitting Done">The Knitting Done
<option value="The Footsteps Die Out For Ever">The Footsteps Die Out For Ever
</select></b></td></tr></table>
</form>
<p>
<ol>
<li><span id="ans1">Contents of the span block with id="LuL"</span>
<li><span id="ans2">Contents of the span block with id="ans2"</span>
<li><span id="ans3">Contents of the span block with id="ans3"</span>
<li><span id="ans4">Contents of the span block with id="ans4"</span>
<li><span id="ans5">Contents of the span block with id="ans5"</span>
<li><span id="ans6">Contents of the span block with id="ans6"</span>
<li><span id="ans7">Contents of the span block with id="ans7"</span>
<li><span id="ans8">Contents of the span block with id="ans8"</span>
<li><span id="ans9">Contents of the span block with id="ans9"</span>
<li><span id="ans10">Contents of the span block with id="ans10"</span>
<li><span id="ans11">Contents of the span block with id="ans11"</span>
<li><span id="ans12">Contents of the span block with id="ans12"</span>
<li><span id="ans13">Contents of the span block with id="ans13"</span>
<li><span id="ans14">Contents of the span block with id="ans14"</span>
<li><span id="ans15">Contents of the span block with id="ans15"</span>
<li><span id="ans16">Contents of the span block with id="ans16"</span>
<li><span id="ans17">Contents of the span block with id="ans17"</span>
<li><span id="ans18">Contents of the span block with id="ans18"</span>
<li><span id="ans19">Contents of the span block with id="ans19"</span>
<li><span id="ans20">Contents of the span block with id="ans20"</span>
<li><span id="ans21">Contents of the span block with id="ans21"</span>
<li><span id="ans22">Contents of the span block with id="ans22"</span>
<li><span id="ans23">Contents of the span block with id="ans23"</span>
<li><span id="ans24">Contents of the span block with id="ans24"</span>
<li><span id="ans25">Contents of the span block with id="ans25"</span>
</ol>
<br><input type="button" value="this button executes the function fred()" onClick="fred()">
</body>
</HTML>

Explain how process replacement works. What functions does it use?

Increasingly patients expect full access to their EMRs and EHRs. What limitations, if any, would be in the best interest of patients? For example, should healthcare providers have access to new test results for 3 full business days before these are posted for patient viewing?

I am needing to find sources to answer this question. They need to be peer-reviewed nursing journals from the year 2013+. I am having trouble finding the correct resources in order to find the peer-reviewed nursing journals. I utilized my textbook and the databases at my college and am still at a loss. If you find any good sources that answer this question will you please copy and paste the links for me please? Or if you have any advice for me? Thank you!

Create the function fact that had a positive integer argument and returns its factorial . Recall that factorial (n) = 1*2*3***n. For example factorial (4)=1*2*3*4=24, (python)

You are an intern in the Cybersecurity Operations Office for the new National Youth Social Media Administration. You just graduated from the Webster University Cybersecurity Program and you want to impress your supervisors in order to have a greater opportunity for a promotion. Discuss your proposal for a Cybersecurity strategy for this new national office.

C++...This program is broken down into phases for your convenience only. Please turn in only the final phase. Before turning in your program, please make sure that it does something reasonable if the user enters a negative number the first time.

Phase I: Write a program for a theater that will keep track of how many people in each of 5 age categories attended a particular movie. Use the 5 age categories listed below in the sample screen output. The user will enter a number of ages, entering a negative number when there are no more ages to enter. Your program will then report on how many people in each age group attended. Sample screen output:

    Enter age of attendee (-1 to quit): 34    
    Enter age of attendee (-1 to quit): 16
    Enter age of attendee (-1 to quit): 68
    Enter age of attendee (-1 to quit): 53
    Enter age of attendee (-1 to quit): 39
    Enter age of attendee (-1 to quit): 23
    Enter age of attendee (-1 to quit): 21
    Enter age of attendee (-1 to quit): -1

    age 0  to 18: 1
    age 19 to 30: 2
    age 31 to 40: 2
    age 41 to 60: 1
    over 60: 1

Phase II: Modify your program so that, in addition to the report that the program currently produces, it also gives the average age of the people in attendance, the age of the oldest person in attendance, and the age of the youngest person in attendance. Sample screen output:

 
    Enter age of attendee (-1 to quit): 34    
    Enter age of attendee (-1 to quit): 16
    Enter age of attendee (-1 to quit): 68
    Enter age of attendee (-1 to quit): 53
    Enter age of attendee (-1 to quit): 39
    Enter age of attendee (-1 to quit): 23
    Enter age of attendee (-1 to quit): 21
    Enter age of attendee (-1 to quit): -1

    age 0  to 18: 1
    age 19 to 30: 2
    age 31 to 40: 2
    age 41 to 60: 1
    over 60: 1

    The average age was 36.
    The youngest person in attendance was 16.
    The oldest person in attendance was 68.

Phase III: Modify your program so that it also asks each attendee for a theater concession stand purchase. The attendee must make a selection based on the following choices …

1 - Soft Drink (such as Coca Cola, ICCEE, Mineral Water etc...)

2 - Popcorn

3 - Nachos       

4 - Soft drink & Popcorn

5 - Soft drink & Nachos

6 - Organic and Gluten-free snacks       

7 – None

The program output should now also provide a theater concession stand sales summary with a count of each category purchased.

Note: Include a validation routine to ensure that a correct choice is input for each attendee.

Check the sample screen output below for the final formatted display of theater statistics.

 
  ==========================
  THEATER STATS PROGRAM
  ==========================

Movie theater snacks available for purchase
==========================================
1 - Soft Drink (such as Coca Cola, ICCEE, Mineral Water etc...)
2 - Popcorn
3 - Nachos
4 - Soft drink & Popcorn
5 - Soft drink & Nachos
6 - Organic and Gluten-free snacks
7 - None
==========================================

Enter age of attendee (-1 to quit): 34
Movie theater snack purchased. (Select items 1 - 7):4
--------------------------
Enter age of attendee (-1 to quit): 16
Movie theater snack purchased. (Select items 1 - 7):5
--------------------------
Enter age of attendee (-1 to quit): 68
Movie theater snack purchased. (Select items 1 - 7):12
Invalid selection, please choose from 1 - 7
Movie theater snack purchased. (Select items 1 - 7):6
--------------------------
Enter age of attendee (-1 to quit): 53
Movie theater snack purchased. (Select items 1 - 7):6
--------------------------
Enter age of attendee (-1 to quit): 39
Movie theater snack purchased. (Select items 1 - 7):1
--------------------------
Enter age of attendee (-1 to quit): 23
Movie theater snack purchased. (Select items 1 - 7):2
--------------------------
Enter age of attendee (-1 to quit): 21
Movie theater snack purchased. (Select items 1 - 7):3
--------------------------
Enter age of attendee (-1 to quit): 21
Movie theater snack purchased. (Select items 1 - 7):4
--------------------------
Enter age of attendee (-1 to quit): -1

==================================
  THEATER STATS PROGRAM RESULTS
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age 0  to 18:    1
age 19 to 30:    3
age 31 to 40:    2
age 41 to 60:    1
over 60:         1

The average age was 34
The youngest person in attendance was 16
The oldest person in attendance was 68

Theater Concession Stand sales
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Soft Drink (such as Coca Cola, ICCEE, Mineral Water etc.): 1
Popcorn: 1
Nachos: 1
Soft drink & Popcorn: 2
Soft drink & Nachos: 1
Organic and Gluten-free snacks: 2

Process returned 0 (0x0)   execution time : 169.589 s
Press any key to continue. 

Using R Language

The code provided below uses a for loop to simulate conducting 10,000 polls of 8 people in which each person has 58% probability of being a supporter of the Democratic candidate and a 42% probability of being a supporter of the Republican. The way the loop works is it runs through the code inside the loop 10,000 times, but changing the value of i with each iteration (i is 1 in the first iteration, 10,000 in the last).

# Define a vector of integers that has 10,000 elements. poll_sims = vector(length = 10000, mode = "integer") # for loop to simulate 10,000 polls for (i in 1:10000) { # Do a poll of 8 people in which each person has a 58% chance of supporting the # Democratic candidate and 42% chance of supporting the Republican. poll = sample(c("Democrat", "Republican"), size = 8, replace = T, prob = c(.58, .42)) # Count the number of people who support the Democrat and store the result in the # poll_sims vector as the ith result. poll_sims[i] = sum(poll == "Democrat") } 2 # Visualise the poll_sims vector using basic R plot(factor(poll_sims)) # Visualise the poll_sims vector using tidyverse library(tidyverse) qplot(factor(poll_sims)) + geom_bar()

1. Run this code on your own and find the fraction of the simulations in which less than half the people (3 or fewer) support the Democratic candidate. Compare this result to your answer in Question 5 of the previous section.

2. Change the code to simulate 10,000 polls of 100 people (rather than 10,000 polls of 8). Find the fraction of simulations in which less than half the people support the Democratic candidate. In other words, use the simulations to approximate the likelihood that a poll of 100 people will incorrectly guess the winner of the election.

3. Graph the simulations so you can visualize the distribution.

4. Change the code again to simulate 10,000 polls of 1,000 people. Find the fraction of simulations in which between 55% and 61% of the people support the Democratic candidate. In other words, use the simulations to approximate the likelihood that a poll of 1,000 people will be off from the true probability by 3% or less.