Rewrite the program for Question 3 in Homework 1. Your program should ask for the number of items a customer bought and the price of each item, then displays the subtotal, the amount of sales tax (8.75%), and the total amount as follows. Your program should use lambda and higher-order functions to calculate the sum of item prices with two decimal Test your program with 3 customers for the output!

Part1-Python Programming

1. Rewrite the program for Question 3 in Homework 1. Your program should ask for the number of items a customer bought and the price of each item, then displays the subtotal, the amount of sales tax (8.75%), and the total amount as follows. Your program should use lambda and higher-order functions to calculate the sum of item prices with two decimal

Test your program with 3 customers for the output!

Sample Output)

Enter your number of purchased items: 5 Enter the price of item #1:                                 20

Enter the price of item #2:              20

Enter the price of item #3:              20

Enter the price of item #4:              20.56

Enter the price of item #5:              40.34

Subtotal : $ 120.90 Sales Tax: $ 10.58

Total Amount: $ 131.48

2. Create a Python dictionary ‘GradeBook’ for the following table with ID as key

1. Display your dictionary
2. Replace the values for Name, Score, and Grade of a student whose ID is 2010 with new values

Jane, 88, and B+ and display the change in the output

• Write a program that displays ID, Name, and Grade as follows: ID Name Grade

3. Python module ‘random’ generates a random number between 0 and 1 as

import random random.seed(1) random.random()

output: 0.13436424411240122

1. Create a horizontal list of 100 random numbers with 5 decimal places as the following. [‘0.18019’, ‘0.48736’, ‘0.07759’, ‘0.52257’, ‘0.91964’, … ]

1. Write a function that takes the above horizontal list of 100 random numbers as an argument and returns the list of random numbers without zero and dot(.) as the

[‘1819’, ‘48736’, ‘7759’, ‘52257’, ‘91964’, … ]

4. Download and open the file named ‘finnews’ in the homework folder of the Course Blackboard

1. Copy the entire text and assign it to a variable named ‘finnews’
2. Count the total number of all characters in the text ‘finnews’
3. Write a function that counts the number of alphabets, numerical digits, and special characters, and returns them
4. Write a function that takes the function for (c) as an argument. Then it checks if the answer from (b) and the total sum from (c) are the same or not. Your function should display appropriate messages depending on the result such as

‘Your function for (c) is not correct. Please fix it!’ or

‘ Your function for (c) is correct. Good Job!’

Part2-Statistics

1. The resting heart rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. Use the 68.3-95.4-99.7 rule to find the percentage of heart rates in the following

• less than 55 2) greater than 85                               3) between 55 and 85

2. Scores on a chemistry exam are normally distributed with a mean of 67 and a standard deviation of Calculate the followings using Python. Show your codes and outputs!

Decimal numbers should be rounded to the nearest thousandth digit.

• What is the standard score for an exam score of 88?
• About what percentage of the exam scores were above 83
• What is the percentage of scores below 59?
• What is the percentage of scores above 65 and below 85
• Suppose that 1000 students took the test. About how many students scored above 75?

3. Find the approximate standard score using Python. Show your codes and outputs!

• A standard score in the 99^th percentile
• A standard score in the 45^th

4. University conducts research on the performance of students in a business course by randomly selecting 50 students course scores as follows:

[82, 99, 97, 73, 94, 94, 71, 74, 94, 90, 99, 77, 78, 91, 79, 86, 79, 99, 94, 85, 70, 83, 75, 85, 82,

95, 84, 78, 85, 77, 85, 82, 71, 78, 80, 86, 82, 88, 83, 94, 77, 91, 86, 77, 89, 82, 91, 85, 70, 98]

Use Python to construct 90%, 95%, and 99% confidence intervals for the average course score of all students. Use 2 decimal places for the output. Show your codes and outputs!

5. You randomly select 20 mortgage institutions and determine the current mortgage interest rate. Use Python to construct 90%, 95%, and 99% confidence intervals for the current average mortgage rate. Use 4 decimal places for the output. Show your codes and outputs!

[0.0513, 0.0597, 0.0538, 0.0562, 0.0567, 0.0591, 0.0597, 0.0586, 0.0551, 0.0535,

0.0555, 0.0575, 0.0584, 0.0539, 0.0561, 0.0593, 0.0579, 0.0599, 0.0501, 0.0575]