JAMB Economics 2008 Objective — Question 4

Question 4 of 50 from the Joint Admissions and Matriculation Board (JAMB) Economics 2008 Objective paper, with the correct answer and a full explanation.

If the standard deviation of a given data is 8.2, find its variance

A. 4.1
B. 67.2Correct
C. 82.0
D. 91.8

Explanation

The square root of variance is the standard deviation. When standard deviation is squared, we get the variance, i.e. (8.2)^2 = 67.2.

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