For a frequency distribution, sum(f_i * x_i) = 450 and sum(f_i) = 30. What is the arithmetic mean?

Type: MCQ • Marks: 1

A. 1) 20

B. 2) 12

C. 3) 18

D. 4) 15

Explanation

Mean = sum(f * x) / sum(f) = 450 / 30 = 15.

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UP TGT Mathematics

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