A data set has a mean of 28 and consists of 4 numbers. If 3 of the numbers are 30, 15, 21, what is the remaining number?
Difficulty: Medium
About this MCQ
Medium GRE item. Correct choice: B. 46.
- A. 51
Why not A: “51” is not 46.
- B. 46 ✓
- C. 28
Why not C: “28” is not 46.
- D. 41
Why not D: “41” is not 46.
Correct answer
B. 46
Explanation
46 (option B) is the accepted answer to “A data set has a mean of 28 and consists of 4 numbers. If 3 of the numbers are 30, 15, 21, what is the remaining number”. Option A (51) is a different value from 46. Option C (28) is a different value from 46. Option D (41) is a different value from 46. Keep 46 as the GRE fact for this stem.
Source: Original practice question, MCQsHub
Tags: American Exams, GRE, Quant, Statistics
Submitted by: MCQsHub Editorial
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