If 55% of data is 1.5s within the mean, does that mean I add and subtract .75s from the mean, or add and subtract 1.5s from them mean?
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Originally Posted by angrynapkin If 55% of data is 1.5s within the mean, does that mean I add and subtract .75s from the mean, or add and subtract 1.5s from them mean? 55% of data within 1.5 s of the mean means that 55% is in mean+/-1.5s. But that is not the percentage/multiple that Chebyshev gives, a multipler of 1.5 corresponds to 44%. CB
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