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Mean of 2.8, 5/2, 5.2, 2/5 is ……………….. 

A) 0.4 

B) 2.5 

C) 2.65 

D) 5.2

2 Answers

+1 vote
by (56.9k points)
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Best answer

Correct option is (C) 2.65

Ascending order of observation is \(\frac{2}{5},\frac52,2.8,5.2\)

\(\therefore\) Mean \(=\frac12\,(\frac52+2.8)\)


\(=\frac{5.3}2\) = 2.65

+1 vote
by (40.5k points)

Correct option is  C) 2.65

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