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Mathematics 2008 JAMB Past questions - Question 40

MATHEMATICS

JAMB 2008 - Question 40

Mathematics 2008 JAMB Past Questions - Question 40: Find the mean deviation of 2, 4, 5, and 9

Find the mean deviation of 2, 4, 5, and 9

A: 1

B: 2

C: 5

D: 7

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Correct Answer

Explanation

X = 20/4= 5mean deviation = 8/4 = 2