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//Caption: Weighted Arithmetic mean of Grouped data: Grading scheme
//Example3.5
//Page43
clear;
clc;
//Numerical of grade
A = 5;
C = 3;
D = 2;
E = 1;
X = [A,C,D,E,A]; //Numerical of grade
Grade = ['A','C','D','E','A'];
w = [2,1,3,2,1]; //Weigth assigned
n = length(X);
num =0;
den =0;
for i = 1:n
num = num+X(i)*w(i);
den = den+w(i);
end
Xw = num/den;
disp(Xw,'The weighted Score in the given subject of the given student is Xw=')
for i = 1:n
if (X(i) == round(Xw)) then
disp(Grade(i),'And the corresponding grade is =');
end
end
//Result
//The weighted Score in the given subject of the given student is Xw=
//
// 2.8888889
//
// And the corresponding grade is = C
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