Question

Removing an outlier from a list of numbers will generally result in: a smaller SD a...

Removing an outlier from a list of numbers will generally result in:

a smaller SD

a larger SD

an unchanged SD
Math   Statistics-And-Probability   
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Answer #1

Standard deviation is never negative. Standard deviation is sensitive to outliers. Standard deviation is nothing but the spread of the data. A single outlier can raise the standard deviation.

Thus we remove the outliers it results the decrease the standard deviation.

Therefore, if we remove outliers standard deviation decrease

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