Homework Help: Pre-calculus

Posted by Lucy on Wednesday, October 8, 2008 at 3:50pm.

A set of data is normally distributed with a mean of 500 and a standard deviation of 40. What percent of the data is between 460 and 540?

Answer: 68.3%

Pre-calculus - bobpursley, Wednesday, October 8, 2008 at 3:57pm
Yes, that is the definition of a standard deviation.

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