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Date: 20-2-2021
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The th sample central moment of a sample with sample size is defined as
(1) |
where is the sample mean. The first few sample central moments are related to power sums by
(2) |
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(3) |
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(4) |
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(5) |
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(6) |
These relations can be given by SampleCentralToPowerSum[r] in the Mathematica application package mathStatica.
In terms of the population central moments, the expectation values of the first few sample central moments are
(7) |
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(8) |
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(9) |
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(10) |
REFERENCES:
Rose, C. and Smith, M. D. Mathematical Statistics with Mathematica. New York: Springer-Verlag, p. 251, 2002.
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