C-Program Of Sum, Average and Standard Deviation.

C-Program of Calculation of Sum, Average and Standard Deviation using Functions and Pointers.
Write a function that receives 5 integers and returns the sum, average and standard
deviation of these numbers. Call this function from main() and print the results in main().


#include
#include

int calc (float a, float b, float c, float d, float e, float *sum, float *avg,float *sd);

int main()
{
float a, b, c, d, e, sum=0.0, avg=0.0;

float sd=0.0;

printf("Enter Five Numbers:");
scanf("%f %f %f %f %f",&a,&b,&c,&d,&e);

calc (a, b, c, d, e, &sum, &avg, &sd);


printf("\nSum=%f", sum);
printf("\nAverage=%f", avg);

printf("\nStandard Deviation=%f\n", sd);


getchar();

return 0;
}

calc (float a, float b, float c, float d, float e, float *sum, float *avg, float *sd)

{
float Calc=0.0;

*sum = a+b+c+d+e;

*avg = *sum / 5.0;

Calc += ( a - *avg) * ( a - *avg);

Calc += ( b - *avg) * ( b - *avg);

Calc += ( c - *avg) * ( c - *avg);
Calc += ( d - *avg) * ( d - *avg);

Calc += ( e - *avg) * ( e - *avg);


*sd = sqrt((double)Calc/5.0);

}