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# Data Sufficiency

Author Message
Intern
Joined: 09 Aug 2018
Posts: 3

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29 Aug 2018, 05:31
1
00:00

Difficulty:

45% (medium)

Question Stats:

67% (00:32) correct 33% (00:45) wrong based on 6 sessions

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If m, s are the average and standard deviation of integers a, b, c, and d, is s > 0?
1. m > a
2. a + b + c + d = 0
Math Expert
Joined: 02 Sep 2009
Posts: 55802

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29 Aug 2018, 06:46
livedu wrote:
If m, s are the average and standard deviation of integers a, b, c, and d, is s > 0?
1. m > a
2. a + b + c + d = 0

Discussed here: https://gmatclub.com/forum/if-m-s-are-t ... 35881.html
_________________
Re: Data Sufficiency   [#permalink] 29 Aug 2018, 06:46
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