A data set has a mean of 26 and consists of 5 numbers. If 4 of the numbers are 28, 7, 33, 29, what is the remaining number?

Correct answer

D. 33

Explanation

Sum of all 5 numbers = mean × count = 26 × 5 = 130. Sum of the known numbers = 97. Remaining number = 130 - 97 = 33.

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