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18 Jun 2013, 22:08
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Difficulty:
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Question Stats:
33% (01:08) correct
67%
(01:31)
wrong
based on 12
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What is the standard deviation (SD) of the four numbers p, q, r, s?
(1) The sum of p, q, r and s is 16
(2) The sum of the squares of p, q, r and s is 208
(1) The sum of p, q, r and s is 16
(2) The sum of the squares of p, q, r and s is 208
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19 Jun 2013, 00:56
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Check here: what-is-the-standard-deviation-sd-of-the-four-numbers-p-110046.html
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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