C program to add, average and deviation of numbers:
void main()
{
int sum=0,a[10],i;
float avg=0,dev,vari=0,var;
printf("Enter 10 interger \n");
for(i=0;i<10;i++)
scanf("%d",&a[i]);
sum=sum+a[i];
}
avg=sum*0.1;
var=var+pow((a[i]-avg),2);
vari=var/10;
dev=sqrt(vari);
printf(" Sum = %d \n Avrage= %f \n Variance = %f \n Deviation = %f \n",sum,avg,vari,dev);
getch();