A candidate obtains 46% marks in English, 67% in mathematics, 53% in Hindi, 72 % in History and 58% in Economics. It is agreed to give triple weights to marks in English and double weights to marks in Mathematics as compared to other subjects. Calculate weighted mean.​

Dear Student

Let us assume that the weight of other subjects , that is , hindi , history and economics is 1 . Hence weight for english = 1×3=3 and weight for mathematics = 1×2=2
Subject Marks Obtained(X) Weight(W) WX
English 
Maths
Hindi
History
Economics
46
67
53
72
58
3
2
1
1
1
138
134
53
72
58
TOTAL   W = 8
WX=455

Weighted Arithmetic Mean = WXW= 4558 = 56.875

Regards .

  • 1
Weighted mean = (46*3)+(67*3)+72+58+53/8
=455/8=56. 875
  • 1
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