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March 2, 2015

March 2, 2015

Posted by **CJ** on Wednesday, April 28, 2010 at 3:26pm.

Question reads: The mean IQ among members of a club is 118 with a standard deviation of 9.46. What percentage of the members had IQ scores of 115 or higher?

My response,66.3% as follows: Find Z-score of 114 since question asks about 115 or higher (Z=-.42), look up .42 in Z Table (16.28) and add to 50% (66.28%).

- Statistics - Is it from Normal Distribution -
**bobpursley**, Wednesday, April 28, 2010 at 3:35pmIQ is a normal gaussian distribution.

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