Archive:Standard deviation (source code)

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
int n,i,d,a[10];

float x,sd=0,s=0,m=0,sum=0;
clrscr();
printf("enter the number ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("enter the element %d:",i+1);
scanf("%d",&a[i]);
}
for(i=0;i<n;i++)
{
x=x+a[i];
m=x/n;
d=a[i]-m;
sum=sum+d*d;
}
s=sum/n;
sd=sqrt(s);
printf("the number of terms=%d \n",n);
printf("their mean is m=%f \n",m);
printf("standard deviation=%f \n",sd);
getch();
}