For some reason i cant figure this program out ive been working on it for a month

Instructions Write a program that takes, as input, five numbers and outputs the mean (average) and standard deviation of the numbers. If the numbers are X1, X2, X3, Xa, and Xs. then the mean is: x = (X + X + Xg+ +Xs)/5 Reques sandbo and the standard deviation is: s={(x1-x)2+(x2-x)2+(X3- x)+(Xa-x)+(xs-x}^)/5) 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