Absolute C++
6th Edition
ISBN: 9780133970784
Author: Walter Savitch, Kenrick Mock
Publisher: Addison-Wesley
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Textbook Question
Chapter 3, Problem 6PP
Write a function that computes the average and standard deviation of four scores. The standard deviation is defined to be the square root of the average of the four values:
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It is estimated that a restaurant's tip box accumulates twice as much as the previous day. Write the function with the main () function that takes the number of days as a parameter and returns the total tip amount on the day entered in the restaurant with a 10-TL tip on the first day.
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A prime number is a number that is only evenly divisible by itself and 1. For example, the number 5 is prime because it can only be evenly divided by 1 and 5. The number 6, however, is not prime because it can be divided evenly by 1, 2, 3, and 6.
Design a Boolean function called isPrime, that accepts an integer as an argument and returns True if the argument is a prime number, or False otherwise. Use the function in a program that prompts the user to enter a number and then displays a message indicating whether the number is prime. The following modules should be written:
getNumber, that accepts a Ref to an integer, prompts the user to enter a number, and accepts that input
isPrime, that accepts an integer as an argument and returns True if the argument is a prime number, or False otherwise
showPrime, that accepts an integer as an argument , calls isPrime, and displays a message indicating whether the number is prime
The main module, that will call getNumber and showPrime
Write a program that calculates the average of a group of test scores, where
the lowest score in the group is dropped. It should use the following function:
getScore
This function ask the user for a test score, store
it in a
reference parameter variable, and validate it. For input validation, do
not accept test scores lower than 0 or higher than 100. This
function
should be called by main() once for each of the five scores
to be
entered.
calcAverage
This function calculates and display the average of
the four highest score. This function should be called just once by
main(), by should be passed the five scores.
• findLowest
This function finds and returns the lowest of the five
scores passed to it. It should be called by calcAverage function,
which uses the function to determine which of the five scores to drop.
Chapter 3 Solutions
Absolute C++
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