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September 2, 2014

September 2, 2014

Posted by **Anna Swain** on Saturday, August 27, 2011 at 11:47pm.

- algebra -
**Martin**, Sunday, August 28, 2011 at 2:41amvariance = 4, so standard deviation = 2 (because squareroot of 4 is 2)

160 - 166 = -6 = -3 standard deviation.

You take out a normal distribution table and you find out that a standard deviation of -3 or less happens only 0.13% of the time.

Answer : 0.13%

- algebra -
**Akron Oh**, Friday, September 9, 2011 at 6:08pmThanks a million!!!

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