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MATHEMATICS

JAMB 2023 - Question 40

Mathematics 2023 JAMB Past Questions - Question 40: What is the mean deviation of 3, 5, 8, 11, 12 and 21?

What is the mean deviation of 3, 5, 8, 11, 12 and 21?

A: 3.7

B: 10

C: 4.7

D: 60

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Correct Answer

Explanation

Find the mean: Mean=63+5+8+11+12+21 ?= 60 ?= 10 6 6Find the average of these absolute differences:Mean Deviation=7+5+2+1+2+11 = 28 = 4.67 approximately 4.7 6 6