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August 21, 2014

August 21, 2014

Posted by **Theresa** on Tuesday, February 19, 2013 at 4:43pm.

- Statistic -
**JJ**, Tuesday, February 19, 2013 at 4:51pmYou have to find z scores first.

66.2-69.0 then divide by 2.8

77.4 - 69.0 then divide by 2.8

Now, you have to find the area between those two z scores. The empirical rule tells you the % between -3 and 3 standard deviations, between -2 and 2 sds and between -1 and 1 standard deviations.

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