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Mathematics 7 Online
OpenStudy (anonymous):

Suppose the length of time cats sleep each day is normally distributed with a mean of 15 hours and a standard deviation of 2 hours. Which groups describe 34% of the cat population?

OpenStudy (amistre64):

empirical rule has a 68% in it, what 34+34 = 68

OpenStudy (anonymous):

Eh?

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