Following is the formula for calculating the mean or average of a set of values: 7t 1.0 mean -) X Where n is the number of data. This can be done in C by keeping a running sum of numbers as the user enters them. In other words, you have a loop that runs, and every time the user inputs a new number x, the number is added to the running sum xsum (x and xsum are already declared as double) Write appropriate 'for loop' that gathers a number "x" from the user. Add the value of x, once collected, to the running sum xsum. This 'for loop' will repeat as many as the number of data provided