C program to find the standard deviation. i need program also explain the process?

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C program to find the standard deviation. i need program also explain the process?
#include%26lt;stdio.h%26gt;


#include%26lt;conio.h%26gt;


#include%26lt;math.h%26gt;


void main()


{


int n,i,j; /*initialising the variables */


double max[100],sum=0,variance,mean=0;





printf('enter the size of array \n");


scanf("%d",%26amp;n); /*reading the no of elements we needed */





printf("enter the elements of array:\n");


for(i=0;i%26lt;n;i++) /*reading the elements to array max[ ]*/


scanf("%lf",%26amp;max[i]);





i=0; /* initializing the variable to zero.This variable can be used as outer loop variable*/


printf ("\n");


/*loop written to calculate the summation which we can see in the formula (refer to formula of mean)*/


for(j=0;j%26lt;n;j++)


{


sum+=max[i];


i++;


}


mean=sum/i; /* calculating the mean value */


printf("sum of the elements:");


printf("%lf",sum);


printf("mean of the elements:");


printf("%lf",mean);





i=0; /*resetting the variable to zero %26amp; here also it works as outer loop variable in calculating the variance*/


sum=0; /* reset the sum to zero*/


for(j=0;j%26lt;n;j++) /* calculating summation in variance formula (refer to variance formula )*/


{


max[i]=pow((max[i]-mean),2);


sum+=max[i];


i++;


}





variance=sum/(i-1); /* calculating variance*/


printf("standard deviation:"); /* printing the standard deviation as it is the square root of


printf("%lf",sqrt(variance)); variance*/


}

peony