c++

12 Write a program that takes as input five numbers and outputs the mean (average) and standard deviation of the numbers. If the numbers are xi, X2, X3, X4, and X5, then the mean is x (xi + X2 + X3 + X4+ xs)/5 and the standard deviation is: S- Your program must contain at least the following functions: a function that calculates and returns the mean and a function that calculates the standard deviation