sampling distributions and probability

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Question

The scores of high school seniors on the ACT exam in the recent year had mean m=19.2 and standard deviation SD=5.1. The distribution of scores is only roughly normal. a) What is the approximate probability that a single student randomly chosen from all those taking the test scores 23 or higher? b) Now... May 06 2012 05:26 PM

 

Solution ID:608847 | This paper was updated on 26-Nov-2015

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