Write a C program to input real numbers and find the mean, variance and standard deviation.Mean is sum of values divided by the total number of values. Variance shows the how the data s are distributed. Standard deviation is the square root of its variance. Read more about C Programming Language .

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#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 Nn");

scanf("%d", &n);

printf("Enter %d real numbersn",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 varaience 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 = %.2fn", avrg);

printf("Varience of all elements = %.2fn", var);

printf("Standard deviation = %.2fn", SD);

} /*End of main()*/

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