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Interpreting the variance and standard deviation:...

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Interpreting the variance and standard deviation: The distribution of grades in an introductory finance class is normally distributed, with an expected grade of 70. If the standard deviation of grades is 15, in what range would you expect 68.26 percent of the grades to fall? Number of Standard Deviations Fraction of from the Mean Total Observations ________________________________________ 1.000 68.26% 1.645 90% 1.960 95% 2.575 99%

 

Paper#3939 | Written in 18-Jul-2015

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