In a set of 10 values, the sum of deviations from 5 is 20 and from 6 is 10. The mean is: MCQ with Answer and Explanation

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In a set of 10 values, the sum of deviations from 5 is 20 and from 6 is 10. The mean is:

A. 6

B. 8

C. 7

D. 5.5

Answer: Option C

Solution (By JKExamLibrary)

Σ(x-5)=Σx -50=20 → Σx=70. Mean=7. Check: Σ(x-6)=70-60=10, correct.

This question belongs to: Accountancy and Statistics Statistics

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