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October 21, 2014

October 21, 2014

Posted by **Mya** on Sunday, November 22, 2009 at 9:50am.

112.

- statistics -
**drwls**, Sunday, November 22, 2009 at 10:44amThe "sigma" or standard deviation for IQ sorces is 16, and the mean is 100. You are asking for the probability that the IQ is between -0.75 sigma and +0.75 sigma of the mean of a normal distribution.

Using the computational tool at

(Broken Link Removed) I get 54.7%

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