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#1 2012-10-03 01:33:44

cassrl
Member
Registered: 2012-10-03
Posts: 4

statistics

Top 12% of the class will an A.  Mean grade is 72 and the standard deviation is 10.  What grade would you need to earn an A?

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#2 2012-10-03 02:41:03

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,257

Re: statistics

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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