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September 23, 2014

September 23, 2014

Posted by **Sally** on Saturday, February 7, 2009 at 7:55pm.

- math -
**bobpursley**, Saturday, February 7, 2009 at 8:06pm.27 percent

http://www.math.csusb.edu/faculty/stanton/m262/normal_distribution/normal_distribution.html

- math -
**Anonymous**, Wednesday, April 21, 2010 at 7:52pmThe mean length of the first 20 space shuttle flights was about 7 days, and

the standard deviation was about 2 days. On the basis of Chebychev’s

Theorem, at least how many of the flights lasted between 3 days and 11

days?

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