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2. Assume that the mean score on a certain aptitude test across the nation is 100, and that the standard deviation is 20 points. Find the probability that the mean aptitude test score for a randomly selected group of 150 8th graders is between 97 and 103. (Points : 3) Mar 24 2012 09:13 AM

 

Solution ID:608921 | This paper was updated on 26-Nov-2015

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