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March 29th, 2017, 04:03 PM   #1
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Math Focus: Number theory
One measure significant in standard deviation?

When is one observation not considered statistically significant, such as subtracting one (Bessel's correction) while calculating standard deviation?
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March 29th, 2017, 04:24 PM   #2
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There is no standard deviation for one observation.
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March 29th, 2017, 07:10 PM   #3
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So does one use N-1 or N in the standard deviation radical's denominator?
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March 30th, 2017, 06:08 PM   #4
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Quote:
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So does one use N-1 or N in the standard deviation radical's denominator?
For statistical data use N-1.
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