Standard Deviation Method in C

A measure of dispersion in a frequency distribution, equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution. The square root of the variance. A measure of dispersion of a set of data from its mean.

Program of Standard Deviation in C

  #include<stdio.h>
  #include<conio.h>
  void main()
  {
	int a[100],s=0,sd,b,s1=0,mean,n,i;
	clrscr();
	printf("Enter the Frequency :- ");
	scanf("%d",&n);
	printf("Enter %d Values in Array :- ",n);
	for(i=0; i<n; i++)
	{
	    scanf("%d",&a[i]);
	}
	for(i=0; i<n; i++)
	{
	    s=s+a[i];
	}
	mean=s/n;
	for(i=0; i<n; i++)
	{
	   b=a[i]-mean;
	   s1=s1+b*b;
	}
	   s1=s1/n;
	   sd=sqrt(s1);
	   printf("Standard Deviation :- %d",sd);
	   getch();
  }

Output