Part 1.
3.13 Overweight baggage: Suppose weights of the checked baggage of airline passengers follow a nearly normal distribution with mean 44.8 pounds and standard deviation 3.3 pounds. Most airlines charge a fee for baggage that weigh in excess of 50 pounds. Determine what percent of airline passengers incur this fee. (Round to the nearest percent.) __________.
Part 2.
There are two distributions for GRE scores based on the two
parts of the exam. For the verbal part of the exam, the mean is 151
and the standard deviation is 7. For the quantitative part, the
mean is 153 and the standard deviation is 7.67. Use this
information to compute each of the following:
(Round to the nearest whole number.)
a) The score of a student who scored in the 80-th percentile on
the Quantitative Reasoning section. ________.
b) The score of a student who scored worse than 65% of the test
takers in the Verbal Reasoning section. ________.
Part 3.
3.10 Heights of 10 year olds: Heights of 10 year olds, regardless of gender, closely follow a normal distribution with mean 56 inches and standard deviation 5 inches.
a) What is the probability that a randomly chosen 10 year old is
shorter than 47 inches? (Keep 4 decimal places.)
____________.
b) What is the probability that a randomly chosen 10 year old is
between 60 and 66 inches? (Keep 4 decimal places.)
__________.
c) If the tallest 10% of the class is considered "very tall", what
is the height cutoff for "very tall"? (Keep 2 decimal places.)
________. inches
d) The height requirement for Batman the Ride at Six Flags
Magic Mountain is 55 inches. What percent of 10 year olds cannot go
on this ride? (Keep 2 decimal places.) %_______.
Part 4.
3.12 Speeding on the I-5, Part I: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.1 miles/hour and a standard deviation of 5 miles/hour. (Keep 2 decimal places.)
a) What percent of passenger vehicles travel slower than 80
miles/hour? _________%
b) What percent of passenger vehicles travel between 60 and 80
miles/hour? ____________%
c) How fast do the fastest 5% of passenger vehicles travel?
__________ miles/hour
d) The speed limit on this stretch of the I-5 is 70 miles/hour.
Approximate what percentage of the passenger vehicles travel above
the speed limit on this stretch of the I-5. __________%
In: Math
8.16 LAB: Mileage tracker for a runner
Given the MileageTrackerNode class, complete main() to insert nodes into a linked list (using the InsertAfter() function). The first user-input value is the number of nodes in the linked list. Use the PrintNodeData() function to print the entire linked list. DO NOT print the dummy head node.
Ex. If the input is:
3 2.2 7/2/18 3.2 7/7/18 4.5 7/16/18
the output is:
2.2, 7/2/18 3.2, 7/7/18 4.5, 7/16/18
_____________________________
The given code that i need to use is:
______________________________
Main.cpp
#include "MileageTrackerNode.h"
#include <string>
#include <iostream>
using namespace std;
int main (int argc, char* argv[]) {
// References for MileageTrackerNode objects
MileageTrackerNode* headNode;
MileageTrackerNode* currNode;
MileageTrackerNode* lastNode;
double miles;
string date;
int i;
// Front of nodes list
headNode = new MileageTrackerNode();
lastNode = headNode;
// TODO: Read in the number of nodes
// TODO: For the read in number of nodes, read
// in data and insert into the linked list
// TODO: Call the PrintNodeData() method
// to print the entire linked list
// MileageTrackerNode Destructor deletes all
// following nodes
delete headNode;
}
___________________________________________________
MileageTrackerNode.h
#ifndef MILEAGETRACKERNODEH
#define MILEAGETRACKERNODEH
#include <string>
using namespace std;
class MileageTrackerNode {
public:
// Constructor
MileageTrackerNode();
// Destructor
~MileageTrackerNode();
// Constructor
MileageTrackerNode(double milesInit, string dateInit);
// Constructor
MileageTrackerNode(double milesInit, string dateInit,
MileageTrackerNode* nextLoc);
/* Insert node after this node.
Before: this -- next
After: this -- node -- next
*/
void InsertAfter(MileageTrackerNode* nodeLoc);
// Get location pointed by nextNodeRef
MileageTrackerNode* GetNext();
void PrintNodeData();
private:
double miles; // Node data
string date; // Node data
MileageTrackerNode* nextNodeRef; // Reference to the next
node
};
#endif
______________________________________________
MileageTrackerNode.cpp
#include "MileageTrackerNode.h"
#include <iostream>
// Constructor
MileageTrackerNode::MileageTrackerNode() {
miles = 0.0;
date = "";
nextNodeRef = nullptr;
}
// Destructor
MileageTrackerNode::~MileageTrackerNode() {
if(nextNodeRef != nullptr) {
delete nextNodeRef;
}
}
// Constructor
MileageTrackerNode::MileageTrackerNode(double milesInit, string
dateInit) {
miles = milesInit;
date = dateInit;
nextNodeRef = nullptr;
}
// Constructor
MileageTrackerNode::MileageTrackerNode(double milesInit, string
dateInit, MileageTrackerNode* nextLoc) {
miles = milesInit;
date = dateInit;
nextNodeRef = nextLoc;
}
/* Insert node after this node.
Before: this -- next
After: this -- node -- next
*/
void MileageTrackerNode::InsertAfter(MileageTrackerNode* nodeLoc)
{
MileageTrackerNode* tmpNext;
tmpNext = nextNodeRef;
nextNodeRef = nodeLoc;
nodeLoc->nextNodeRef = tmpNext;
}
// Get location pointed by nextNodeRef
MileageTrackerNode* MileageTrackerNode::GetNext() {
return nextNodeRef;
}
void MileageTrackerNode::PrintNodeData(){
cout << miles << ", " << date <<
endl;
}
In: Computer Science
In: Statistics and Probability
| The expected return on Big Time Toys is 9% and its standard deviation is 21.9%. The expected return on Chemical Industries is 10% and its standard deviation is 29%. |
| a. | Suppose the correlation coefficient for the two stocks' returns is 0.2. What are the expected return and standard deviation of a portfolio with 34% invested in Big Time Toys and the rest in Chemical Industries? (Round your answers to 2 decimal places.) | |
| Portfolio's expected return % | ||
| Portfolio's standard deviation % | ||
| b. | If the correlation coefficient is 0.7, recalculate the portfolio expected return and standard deviation, assuming the portfolio weights are unchanged. (Round your answers to 2 decimal places.) | |
| Portfolio's expected return % | ||
| Portfolio's standard deviation % | ||
| c. | Why is there a slight difference between the results, when the correlation coefficient was 0.2 and when it was 0.7? | |
In: Finance
The following equations describe an economy. (Think of C, I, G, etc., as being measured in billions and I as a percentage; a 5 percent interest rate implies I=5).
C = 0.8 (1 – t) Y
t = 0.30
I = 1000 – 50 i
G= 500
L = 0.25Y – 65 i
M/P = 700
AD = C + I + G + NX
AD = 0.8 (1 – t) Y + 1000 – 50i + 500
AD = 0.8 (1 – 0.3) Y + 1500 – 50i
At equilibrium AD = Y so
Y= 0.8 (1 – 0.3) Y + 1500-50i
Y- [0.8 (1 - .3) Y]=1500 – 50i
Y[1 – (0.8(1 - .3))] = 1500 – 50i
Y= [1/ (1- (0.8 (1- 0.3))] x (1500- 50i)
Y= 2.27(1500 – 50i)
Y= 3405 – 113.5i
M-bar/P-bar = L
700= .25Y – 65i
0.25Y = 700 +65i
Y= 4(700 + 65i)
Y= 2800 + 260i
3405 – 113.5i = 2800 + 260i
3405 – 2800 = 113.5i + 260i
605= 373.5i
i= 1.62
Y= 2800 + 260(1.62)
Y= 3221.2
In: Economics
1-A contractor decided to build homes that will include the middle 80% of the market. If the average size of homes built is 1750 square feet, find the maximum and minimum sizes of the homes the contractor should build. Assume that the standard deviation is 96 square feet and the variable is normally distributed.
2-Determine the indicated probability for a binomial experiment with the given number of trials n and the given success probability p. n = 13, p = 0.7, P(Fewer than 4)
3-A student takes a 5 question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student gets exactly 2 questions correct?
4- An investor is considering a $15,000 investment in a start-up company. She estimates that she has probability 0.15 of a $10,000 loss, probability 0.1 of a $10,000 profit, probability 0.3 of a $30,000 profit, and probability 0.45 of breaking even (a profit of $0). What is the expected value of the profit? $11,500 $15,250 $10,000 $8,500
In: Statistics and Probability
Since you became an expert in Corporate Finance and CAPM, now you want to make some money by investing in stocks. Instead of buying one stock, you will make a diversified portfolio using several stocks. Suppose that there are only 3 stocks in the market, and expected return, standard deviation, and correlations are as follows
Stocks Expected Return Standard Deviation
Stock A 5% 5%
Stock B 7% 10%
Stock C 10% 20%
Correlations Stock A Stock B Stock C
Stock A 1 0.4 -0.3
Stock B 0.4 1 0.7
Stock C -0.3 0.7 1
*Calculate Expected Return and Standard Deviation of Each
Portfolio:
Portfolio 1: 30% in Stock A + 70% in Stock B
Portfolio 2: 60% in Stock B + 40% in Stock C
Portfolio 3: 50% in Stock A + 50% in Stock C
In: Finance
You are given a transition matrix P. Find the steady-state distribution vector. HINT [See Example 4.]
P = [0.6 0 0.4
1 0 0
0 0.2 0.8]
In: Statistics and Probability
You are given a transition matrix P. Find the steady-state distribution vector. HINT [See Example 4.]
P = [0.6 0 0.4
1 0 0
0 0.2 0.8]
In: Statistics and Probability
Question 1: Given the following probability distributions for stock A and stock B
| Probability | R_A | R_B |
|---|---|---|
| 0.3 | 0.3 | 0.05 |
| 0.2 | 0.1 | 0.15 |
| 0.5 | -0.02 | 0.25 |
Calculate (a) expected return, (b) standard deviation (c) coefficient of variation for each stock (analyze single stock separately: do expected return for A, standard deviation for A, CV for A. Then repeat the steps for stock B)
In: Finance