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Suppose you have a data set that is normal and with a mean of 78 and a standard deviation of 9. Within what range would you expect to fine 95% of the data?
14 years ago

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TutorCat
within in 2 standard deviations of of the mean

i.e. 78 +/- 2*(9)

http://faculty.colostate-pueblo.edu/paul.chacon/156sum04/EDA_68_95_997.html
14 years ago

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