/* C program to accept a set of numbers and compute mean, variance and standard deviation */

#include <stdio.h>
#include <math.h>

void main()
{
float x[10];
int  i, n;
float avrg, var, SD, sum=0, sum1=0;

printf(“Enter how many elements\n”);
scanf(“%d”, &n);

for(i=0; i<n; i++)
{
scanf(“%f”, &x[i]);
}

/* Compute the sum of all elements */
for(i=0; i<n; i++)
{
sum = sum + x[i];
}
avrg = sum /(float) n;

/* Compute  variance  and standard deviation  */
for(i=0; i<n; i++)
{
sum1 = sum1 + pow((x[i] – avrg),2);
}

var = sum1 / (float) n;
SD = sqrt(var);

printf(“Average of all elements =%.2f\n”, avrg);
printf(“Variance of all elements =%.2f\n”, avrg);
printf(“Standard deviation of all elements =%.2f\n”, SD);

}

/*—————————————————-
Output
Enter how many elements
5
10
21
32
59
17
Average of all elements =27.80
Variance of all elements =27.80
Standard deviation of all elements =17.15
——————————————————–*/

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Tagged as: accept a set of numbers and compute mean, C program to accept a set of numbers and compute mean, variance and standard deviation