A data set has a mean of 32 and consists of 5 numbers. If 4 of the numbers are 24, 28, 38, 28, what is the remaining number?

Correct answer

C. 42

Explanation

Sum of all 5 numbers = mean × count = 32 × 5 = 160. Sum of the known numbers = 118. Remaining number = 160 - 118 = 42.

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