A data set has a mean of 24 and consists of 5 numbers. If 4 of the numbers are 20, 37, 23, 11, what is the remaining number?

Correct answer

D. 29

Explanation

Sum of all 5 numbers = mean × count = 24 × 5 = 120. Sum of the known numbers = 91. Remaining number = 120 - 91 = 29.

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