C Problem 2

#include <stdio.h>
double find_average(double ara[], double n);
int main()
{
    double ara[] = {152,145,169,125,147,120,98,03,36,180,348,400,-36,-100,-400,259};
    double n=16;
    double average=find_average(ara,n);
    printf("%lf", average);
    return 0;
}
double find_average(double ara[], double n)
{
    double sum=0;
    double i;
    double average;
    for(i=0 ;i<n; i++){
    average=(sum+ara[i])/n;
    }


    return average;
}