Code:
#include stdio.h
#include math.h
#define MAXSIZE 10
void main()
{
float x[MAXSIZE];
int i, n;
float average, variance, std_deviation, sum = 0, sum1 = 0;
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];
}
average = sum / (float)n;
/* Compute variance and standard deviation */
for (i = 0; i < n; i++)
{
sum1 = sum1 + pow((x[i] - average), 2);
}
variance = sum1 / (float)n;
std_deviation = sqrt(variance);
printf("Average of all elements = %.2f\n", average);
printf("variance of all elements = %.2f\n", variance);
printf("Standard deviation = %.2f\n", std_deviation);
}
Output:
Enter the value of N
5
Enter 5 real numbers
34
88
32
12
10
Average of all elements = 35.20
variance of all elements = 794.56
Standard deviation = 28.19
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