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Is it possible to create a data set where the standard deviation is a negative number? if so, give an example?
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Is it possible to create a data set where the standard deviation is a negative number? if so, give an example?

User Jesika
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No The standard deviation is always positive.  It is a measure of spread of data around the mean of the data set. A negative standard deviation makes no sense.
User Mikefolu
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