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OpenStudy (anonymous):
In a set of 400 values, the mean is 121 and the standard deviation is 14. Estimate how many values fall in between each interval a) 107 - 135=68% b)93 - 149=95% c) 79 - 163=97.7
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OpenStudy (amistre64):
those do appear to be the empirical rule intervals for 1 2 and 3 sd
OpenStudy (amistre64):
as such 68% of 400 95% of 400 and 97.7% of 400 respectively it would seem
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