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October 2, 2014

Homework Help: 12th grade Math-statistics

Posted by Jodine on Friday, December 12, 2008 at 11:22pm.

The annual sales, in millions, for 28 toy department stores is listed.
A)Calculate the mean and standard deviation of the data. Answer to the nearest tenth.
B) Calculate the percent of sales to the nearest whole number, that are:
i)within one SD of the mean

ii)within two SD of the mean

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