c programming question

Declare an integer array of size 10. Ask the userto populate the array and then calculate the following by reading the numbers from the array: sum of the elements in the array, average of the elements, variance of the elements Then display all of the above on the screen on a separate line. MY Use the following formula to calculate variance: s2 (d; )? n - 1 Do not use any built-in functionsfor calculating sum, average and variance in your code