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# The data sets I, II, and III above are ordered from greatest standard

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Math Expert
Joined: 02 Sep 2009
Posts: 55265
The data sets I, II, and III above are ordered from greatest standard  [#permalink]

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16 Sep 2018, 02:25
00:00

Difficulty:

5% (low)

Question Stats:

88% (00:50) correct 12% (00:54) wrong based on 78 sessions

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I. 72, 73, 74, 75, 76
II. 74, 74, 74, 74, 74
III. 62, 74, 74, 74, 89

The data sets I, II, and III above are ordered from greatest standard deviation to least standard deviation in which of the following?

A. I, II, III
B. I, III, II
C. II, III, I
D. III, I, II
E. III, II, I

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Intern
Joined: 23 Apr 2018
Posts: 33
Re: The data sets I, II, and III above are ordered from greatest standard  [#permalink]

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16 Sep 2018, 02:33
Option D
Seems the clearest with 3rd being greatest standard deviation, then 1st set and 2nd with least SD

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Intern
Joined: 20 Jun 2017
Posts: 14
Re: The data sets I, II, and III above are ordered from greatest standard  [#permalink]

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16 Sep 2018, 04:45
3
A low standard deviation indicates that the data points tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the data points are spread out over a wider range of values.

Considering the above statement, sequence is III, I, II

Re: The data sets I, II, and III above are ordered from greatest standard   [#permalink] 16 Sep 2018, 04:45
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