Chapter 7, Problem 4PP

Program Plan Intro

Program Plan:

• Include the appropriate headers into program.
• Declare and define the constant variable “LEN”.
• Declare the appropriate functions.
• Define the “main()” function.
  • Declare the array variable “arr[]” in type of double.
  • Declare the variables “stdDeviation” and “avg” in type of double.
  • Declare the variable “ans” in type of character.
  • Using “do…while” loop, prompt the user for array values.
    • Call the function “stdDev()” which passes array and size of array and store the result in “stdDeviation”.
    • Prompt and get the sentinel value from user.
    • Check the loop with condition for sentinel value.
  • Return “0” to called function.
• Define the function named “stdDev()” which passes the arguments “arr[]” in type of character and “size” in type of integer.
  • Declare and initialize the “sumSquares” in type of “double”.
  • Call the function “average()” which passes array and size of array as arguments and stores the result in “avg” variable.
  • Using “for” loops, calculate the summation value.
  • Return the square root of summation value.
• Define the function named “average()” which passes “arr[]” and “size”  as arguments.
  • Declare and initialize the “sum” in type of “double”.
  • Using “for” loop, calculate the total of array values.
  • Return the average of array values.