Outliers from standard deviation and the mean A level Maths Watch

scarlettih
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#1
Report Thread starter 3 weeks ago
#1
I've seen the formula as
mean + or - 1.5 x sd
and
mean + or - 2 x sd

Which is it!
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mqb2766
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Generally depends on the context, i.e. a normal distribution or a uniform distribution or a box and whiskers plot or ... What is the context of the question?
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