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MATHEMATICS

JAMB 2002 - Question 42

Mathematics 2002 JAMB Past Questions - Question 42: Find the mean of the data 7,-3,4,-2,5,-9,4,8,-6,12

Find the mean of the data 7,-3,4,-2,5,-9,4,8,-6,12

A: 3

B: 4

C: 1

D: 2

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Correct Answer

Explanation

To find the mean of a set of data, we sum up all the values and divide by the total number of values.Given the data: 7, -3, 4, -2, 5, -9, 4, 8, -6, 12Summing up all the values: 7 + (-3) + 4 + (-2) + 5 + (-9) + 4 + 8 + (-6) + 12 = 20There are 10 values in the data set.Mean = Sum of values / Total number of values = 20 / 10 = 2Therefore, the mean of the given data set is 2.