/* 4 PROGRAM TO CALCULATE WEIGHTED ARITHMETIC MEAN*/

 /* 4 PROGRAM TO CALCULATE WEIGHTED ARITHMETIC MEAN*/

#include<stdio.h>

int main()

{

int x[]={71,83,73,74,65,66};

int w[]={3,4,5,2,3,3};

float wam,wt=0,wtx=0;

int i,wx[6];

printf("\n COMPUTATION OF WEIGHTED MEAN");

for(i=0;i<6;i++)

{

wt=wt+w[i];               /*  SUM OF W  */

wx[i]=x[i]*w[i];        /*  MULTIPLICATION OF X*W   */

wtx=wtx+wx[i];        /*  SUM OF X*W */

}

printf("\n\n\tX\tW\tX*W\n\n");

for(i=0;i<6;i++)

printf("\n\t%d\t%d\t%d\n",x[i],w[i],wx[i]);

wam=wtx/wt;

printf("\n The sum of W is:-%f",wt);

printf("\n The sum of X*W is:-%f",wtx);

printf("\n The Weighted Arithmetic Mean is:-%f",wam);

return 0;

}

/*OUTPUT:-

 COMPUTATION OF WEIGHTED MEAN

        X       W       X*W

        71      3       213

        83      4       332

        73      5       365

        74      2       148

        65      3       195

        66      3       198

 The sum of W is:-20.000000

 The sum of X*W is:-1451.000000

 The Weighted Arithmetic Mean is:-72.550003

*/