# C program to input real numbers and find the mean, variance and standard deviation

Write a C program to input real numbers and find the mean, variance and standard deviation.Mean is sum of values divided by the total number of values. Variance shows the how the data s are distributed. Standard deviation is the square root of its variance. Read more about C Programming Language .

`/************************************************************ You can use all the programs on  www.c-program-example.com* for personal and learning purposes. For permissions to use the* programs for commercial purposes,* contact [email protected]* To find more C programs, do visit www.c-program-example.com* and browse!* *                                  Happy Coding***********************************************************/#include <stdio.h>#include <conio.h>#include <math.h>#define MAXSIZE 10void main(){ float x[MAXSIZE]; int  i, n; float avrg, var, SD, sum=0, sum1=0; clrscr(); printf("Enter the value of Nn"); scanf("%d", &n); printf("Enter %d real numbersn",n); for(i=0; i<n; i++) {  scanf("%f", &x[i]); } /* Compute the sum of all elements */ for(i=0; i<n; i++) {  sum = sum + x[i]; } avrg = sum /(float) n; /* Compute  varaience  and standard deviation  */ for(i=0; i<n; i++) {  sum1 = sum1 + pow((x[i] - avrg),2); } var = sum1 / (float) n; SD = sqrt(var); printf("Average of all elements  = %.2fn", avrg); printf("Varience of all elements = %.2fn", var); printf("Standard deviation       = %.2fn", SD);}  /*End of main()*/`
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