Post Explanation & Answer In CodeBlocks. Please? & Thank You!

tatistics) Write a program that includes two functions named calcavg) and variance() The calcavg() function should calculate and return the average of values stored in an array named testvals. The array should be declared in main() and include the values 89, 95, 72, 83, 99, 54, 86, 75, 92, 73, 79, 75, 82, and 73. The variance() function should calculate and 7. (Statistics) Write a program that includes two functions named calcavg() and variance( ariance of the data. The variance is obtained by subtracting the average from om each s obtained, adding them, and dividing by the number of value in testvals, squaring the value ts in testvals. The values returned from calcavg() and variance() should be displayed by using cout statements in main()