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MATHEMATICS

JAMB 2020 - Question 21

Mathematics 2020 JAMB Past Questions - Question 21: Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13

Choose the most appropriate option for the gap .

Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13

A: 2

B: 4

C: 12

D: 17

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Correct Answer

Explanation

S.D = ∑√(x−x)^2/N = ∑d^2/N = 28√/7= √4= 2