A voltaic cell consists of an Mn/Mn²⁺ half-cell and a Pb/Pb²⁺ half-cell. Calculate [Pb²⁺] when [Mn²⁺] is 2.7 M and E_cell = 0.35 V.

The reading speed of second grade students in a large city is approximately normal, with a mean of 89 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f).

(a) What is the probability a randomly selected student in the city will read more than 94 words per minute? The probability is (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice.

A. If 100 different students were chosen from this population, we would expect to read less than 94 words per minute.

B. If 100 different students were chosen from this population, we would expect to read exactly 94 words per minute. C. If 100 different students were chosen from this population, we would expect to read more than 94 words per minute.

(b) What is the probability that a random sample of 10 second grade students from the city results in a mean reading rate of more than 94 words per minute?

The probability is

(Round to four decimal places as needed.)

Interpret this probability. Select the correct choice below and fill in the answer box within your choice.

A. If 100 independent samples of n=10 students were chosen from this population, we would expect sample(s) to have a sample mean reading rate of less than 94 words per minute.

B. If 100 independent samples of n=10 students were chosen from this population, we would expect sample(s) to have a sample mean reading rate of more than 94 words per minute.

C. If 100 independent samples of n=1010 students were chosen from this population, we would expect sample(s) to have a sample mean reading rate of exactly 94 words per minute.

(c) What is the probability that a random sample of 20 second grade students from the city results in a mean reading rate of more than 94 words per minute?

The probability is

(Round to four decimal places as needed.)

Interpret this probability. Select the correct choice below and fill in the answer box within your choice.

A. If 100 independent samples of n=20 students were chosen from this population, we would expect sample(s) to have a sample mean reading rate of exactly 94 words per minute.

B. If 100 independent samples of n=20 students were chosen from this population, we would expect sample(s) to have a sample mean reading rate of less than 94 words per minute.

C. If 100 independent samples of n=20 students were chosen from this population, we would expect sample(s) to have a sample mean reading rate of more than 94 words per minute Your answer is correct.

(d) What effect does increasing the sample size have on the probability?

Provide an explanation for this result.

A. Increasing the sample size increases the probability because sigma Subscript x overbarσx increases as n increases.

B. Increasing the sample size decreases the probability because sigma Subscript x overbarσx decreases as n increases. Your answer is correct.

C. Increasing the sample size increases the probability because sigma Subscript x overbarσx decreases as n increases.

D. Increasing the sample size decreases the probability because sigma Subscript x overbarσx increases as n increases.

(e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 19 second grade students was 91.9 wpm. What might you conclude based on this result?

Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals rounded to four decimal places as needed.)

A. A mean reading rate of 91.9 wpm is unusual since the probability of obtaining a result of 91.9 wpm or more is This means that we would expect a mean reading rate of 91.9 or higher from a population whose mean reading rate is 89 in of every 100 random samples of size n=19 students. The new program is abundantly more effective than the old program.

B. A mean reading rate of 91.9 wpm is not unusual since the probability of obtaining a result of 91.9 wpm or more is . This means that we would expect a mean reading rate of 91.9 or higher from a population whose mean reading rate is 89 in of every 100 random samples of size n=19 students. The new program is not abundantly more effective than the old program.

Assignment 8 – UML Diagram - Students Class Revised 9/2019

Throughout Chapters 9 & 10, there are UML class diagrams (Unified Modeling Language) which represent the data fields and methods in a class. From any class given to you, you should be able to design the UML diagram. Likewise, if given a UML, you should be able to define & implement the class.

Please do this in Java please, add comments so it's easy to understand and read so I know how to be able to do it myself.

For the assignment this week, you are given the UML diagram for a class named Students. You will define the Students class and then implement it with a driver program called StudentsDriver.

The StudentsDriver class with the main method should:

• Create an object of the Students class using the no-arg constructor

• get user input for student objects (see sample output below): first name, last name, student id, and birth year and then populate the object using setters (do not use constructors)

• create & initialize 2 objects of the Students class using the overloaded constructor as follows

o first name = Lisa Ann; last name = Larraby; student id = 54321; birth year = 1993 o first name = Karl; last name = Van der Hutten; student id = 54123; birth year = 1983

• call the class toString to display the output for each object as noted in sample output

Validation should be created in the Students class (not driver program):

• Range for student id is 54000 through 54999, inclusive

• Range for student age is from 13 years old to 100 years old, inclusive

• HINTS: in setters for studentID & for birthYear, move the assignment to the appropriate validation method. Then, in each setter, call the appropriate validation method.

*Note: for those already familiar with Java programming, please keep this simple: try/catch, exceptions, GUI, etc. Please use only the concepts discussed up to this point.

Before starting this lab, be sure to refer to the “How to Submit Assignments” document in eLearn for proper documentation, indention, naming conventions, etc. Points may be deducted if submitted incorrectly.

REMINDER: Any sources you use besides the textbook, class demo files, or the instructor must be documented in your program with details such as the scope of help received & URL.

Required project name: LastnameFirstname08 Required package name: chap10 Required class names: as noted above

Sample output. You’re encouraged to use valid, invalid, & boundary test cases. User input in green text:

Enter First Name: Juan Mateo Enter Last Name: Lopez

Enter Student ID: 53500 ID range is 54000 to 54999. Please try again: 53600 ID range is 54000 to 54999. Please try again: 53700 ID range is 54000 to 54999. Please try again: 55000 ID range is 54000 to 54999. Please try again: 56000 ID range is 54000 to 54999. Please try again: 54000

Enter 4-Digit Year of Birth: 1900 Range is 1919 to 2006. Please try again: 1910 Range is 1919 to 2006. Please try again: 1915 Range is 1919 to 2006. Please try again: 2010 Range is 1919 to 2006. Please try again: 2015 Range is 1919 to 2006. Please try again: 1960

Juan Mateo Lopez

Student ID: 54000 Age in 2019: 59 years old

Lisa Ann Larraby

Student ID: 54321 Age in 2019: 26 years old

Karl Van der Hutten Student ID: 54123 Age in 2019: 36 years old

Students

- firstName: String - lastName: String - studentID: int - birthYear: int - CURRENT_YEAR: int - YOUNGEST_AGE:int - OLDEST_AGE:int - LOW_ID:int - HIGH_ID:int

+ Students() + Students(first: String, last: String, studentID: int, birthYear: int)

+ getFirstName(): String + setFirstName (firstName: String): void + getLastName(): String + setLastName (lastName: String): void + getStudentID(): int + setStudentID (studentID: int): void + getBirthYear(): int + setBirthYear(birthYear: int): void + getCurrentYear(): int + getYoungestAge(): int + getOldestAge(): int + getLowId(): int + getHighId(): int

+ validateID(int id): int + validateYr(int yr): int + calcAge(): int + toString(): String <>

You will be graded according to the following rubric (each item is worth one point):

• The Students class is defined exactly & completely as indicated in the UML class diagram.

• Values for constants are used only in initialization and are not hard coded in the methods of the Students class.

• One object is initialized with user input using the Students class setters.

• Two objects are initialized using the Students class overloaded constructor.

• Validation is executed in 2 methods in the Students class.

• In all methods of the Students class, there are no hard coded values.

• Your program compiles & runs.

• You follow standard coding conventions (e.g. variable names, indentation, comments, etc.).

• File name, global comment, citations, etc. as indicated on How to Submit Assignments (Course Overview).

• Your Eclipse project was exported correctly (see Hello World Video Tutorial in Topic 1 Learning Activities).

SML Complete the following programs.

1. Write a function listify that takes a list
and returns a list of lists
where each element of first list
becoming its own single-element list

(Fill in the code here)

fun main() = let
val lst = (explode "rad");
in print (PolyML.makestring ( listify lst )) end;

2. Write a function splitlist that takes a list
of pairs and returns a pair of lists
that has the firsts of the pairs in one list
and the seconds of the pairs in the other list

(Fill in the code here)

fun main() = let
val lst = [("a","b"),("c","d"),("e","f")];
in print (PolyML.makestring ( splitlist lst )) end;

3. Write a function sumPairs that takes a list
of pairs of ints and returns a list
of the sum of each pair

(Fill in the code here)

fun main() = let
val lst = [(0,1),(1,0),(10,10)];
in print (PolyML.makestring ( sumPairs lst )) end;

Homework 5: Lists

Please show code in Pycharm

The task is to create the following three functions to demonstrate techniques for working with lists:

1. greatestPair(x), which accepts a list of numbers x and returns the index position of the greatest adjacent pair. For example, if the list [4, 3, 8, 0] was passed to your function, it would return 1, as that the values 3 and 8 form the greatest adjacent pair in the list. Your function should return None if passed an empty list.
2. isSorted(x) that takes a list of numbers and returns True if the list is sorted (either smallest-first or largest-first) and False otherwise. Your function should return None if passed an empty list.
3. intersection(x,y) that takes two lists x and y as parameters and returns a new list containing the intersection of the two parameters (all elements that are common to both x and y). The returned list should not contain duplicate values.

Consider the circuit shown in (Figure 1) . Suppose that E = 15 V . include units with answers.

Part A: Find the current through the resistor a.

Part B: Find the potential difference across the resistor a. answer: 7.5 V

Part C: Find the current through the resistor b.

Part D: Find the potential difference across the resistor b.

Part E: Find the current through the resistor c.

Part F: Find the potential difference across the resistor c.

Part G: Find the current through the resistor d.

Part H: Find the potential difference across the resistor d.

A doll sold for ?$215 in 1975 and was sold again in 1989 for $488. Assume that the growth in the value V of the? collector's item was exponential.

?a) Find the value k of the exponential growth rate. Assume Vo=215.

?(Round to the nearest? thousandth.)

?b) Find the exponential growth function in terms of? t, where t is the number of years since 1975

?V(t)=

?c) Estimate the value of the doll in 2015.

?(Round to the nearest? dollar.)

?d) What is the doubling time for the value of the doll to the nearest tenth of a? year?

?(Round to the nearest? tenth.)

?e) Find the amount of time after which the value of the doll will be ?$3037

?(Round to the nearest? tenth.)

14f) Fill in the blanks with the best possible answer listed

One way countries try to get out of debt is to Monetize their Debt. This Involves Increasing_________(Q, M, V, P) which Increases_________(Q, M, V, P). This effectively transfers wealth from the Citizens to the Government and also from_________(Debtors, Lenders) to_________(Debtors, Lenders).

In the long-term this hurts GDP growth as it decreases trust in the Government________(True, False). If you have a home loan or a car loan should you repay the loan quickly if you think Inflation is coming?___________(Yes, No). (Assuming you have no job concerns)

Question 6 – 8 refer to prospect H and K below

? = ($100, 0.4; $200, 0.6) ? = ($120, ?; $300, 1 − ?)

6. ?V(?) = ?V(?). What value of p makes this statement true?

7. Carol owns prospect H and is interested in selling it. Her utility of wealth function is given by ?(?) = ?^0.5. What is the lowest price for which Carol would be willing to sell prospect H?

8. True or False: The lowest value of K is greater than the lowest value of H, and the highest value of K is greater than the highest value of H, so everyone – regardless of risk preferences – will prefer K to H.