Program to find mean,variance, standard deviation and sorting if n elements in single dimensional array

 2. Write a functions to compute mean, variance, Standard Deviation, sorting 

of n elements in single dimension array.

Program: 

#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;

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);

getch();

}

output: