// Standard Deviations of n number
#include <stdio.h>
#include <math.h>
int main()
{
float arr[100],sum=0,mean,sd=0,result;
int i,len;
printf("Enter the length of array");
scanf("%d",&len);
for(i =0; i < len ;i++)
{
scanf("%f",&arr[i]);
sum = sum + arr[i];
}
mean = sum / len;
printf("%f",sum);
printf("%f",mean);
for(i=0;i <len;i++){
sd += pow(arr[i] - mean,2);
result =sqrt(sd/10);
}
printf("The Standard devision value is %.6f",result);
return 0;
}