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January 31, 2015

January 31, 2015

Posted by **Jane Brown** on Friday, March 1, 2013 at 6:31pm.

- Math-statistics -
**Dr. Jane**, Friday, March 1, 2013 at 7:26pm40 60 80 100 120 140 160

This represents +/- 3 standard deviations.

68% falls within 80 and 120

95% falls within 60 and 140

99.7% falls within 40 and 160

Using this information and a diagram, I think you will be able to answer wthe questions.

- Math-statistics -
**Anonymous**, Thursday, June 6, 2013 at 12:49ama.percentage of scores less than 100

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