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Which of the following statements must be true about the dat

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Which of the following statements must be true about the dat [#permalink] New post 30 Jul 2018, 09:16
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Which of the following statements must be true about the data described by the box-and-whisker plot above?

Indicate all such statements.

A. The median of the whole set is closer to the median of the lower half of the data than it is to the median of the upper half of the data.
B. The data is normally distributed.
C. The set has a standard deviation greater than zero.
[Reveal] Spoiler: OA

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Re: Which of the following statements must be true about the dat [#permalink] New post 11 Aug 2018, 14:22
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We're looking for what MUST be true:

A: The median on a box plot is the line inside the box. Here, that line falls closer to the right than the left, which means that the median is closer to the 75th percentile (median of upper half of data) than the 25th percentile (median of lower half of data).

B: We have no clue what the distribution of the data is, so we can safely say that this mustn't be true. We can also note that the median doesn't fall on the 50th percentile, so this isn't true.

C: The set clearly has some kind of spread, so the SD is greater than 0.

The answer is just C.
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Re: Which of the following statements must be true about the dat [#permalink] New post 27 May 2020, 05:38
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Re: Which of the following statements must be true about the dat [#permalink] New post 11 Jul 2020, 06:31
First time witnessing such question. Do we really get these type of questions in gre?
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Re: Which of the following statements must be true about the dat [#permalink] New post 11 Jul 2020, 09:39
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Yes.

See GRE Math Review pag 144

https://greprepclub.com/forum/ets-gre-m ... tml#p38263
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Re: Which of the following statements must be true about the dat   [#permalink] 11 Jul 2020, 09:39
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