#include <stdio.h>
#include <conio.h>
#include <math.h>
#define MAXSIZE 10
void main()
{
float x[MAXSIZE];
int i, n;
float avrg, var, SD, sum=0, sum1=0;
clrscr();
printf("Enter the value of N\n");
scanf("%d", &n);
printf("Enter %d real numbers\n",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", var);
printf("Standard deviation = %.2f\n", SD);
} /*End of main()*/
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