Write a C++ program to input the following numbers into an array named grades: 89, 95, 72, 83, 99, 54, 86, 75, 92, 73, 79, 75, 82, 73. As each member is input, add the numbers to a total. After all numbers are input and the total is obtained, calculate the average of the numbers and use the average to determine the deviation of each from the average. Store each deviation in an array named deviation. Each deviation is obtained as the element value less the average of all the data. Have your program display each deviation alongside its corresponding element from the grades array.
Calculate the variance of the data.