What Does the Prime Symbol Mean in Statistical Moments?

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SUMMARY

The prime symbol (') in statistical moments serves to differentiate between variables while maintaining a general meaning. Specifically, it is commonly used to distinguish a "moment about the origin" from a "moment about the mean" in statistical analysis. For instance, in the context of a distribution, u sub r and u sub r' may represent different moments, where u sub r' indicates a moment calculated around the mean. This notation is essential for clarity in statistical discussions and calculations.

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  • Understanding of statistical moments and their significance
  • Familiarity with the concept of moments about the origin and the mean
  • Basic knowledge of notation in statistics
  • Ability to interpret statistical formulas and expressions
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  • Research the differences between central moments and raw moments in statistics
  • Explore the implications of using prime notation in statistical formulas
  • Study examples of calculating moments about the mean versus moments about the origin
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sometimes in statistics there is a prime ( ' ) after the variable for moment ( u sub r ) what does that mean?
 
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Please provide an example.
The prime notation is used to differentiate the variable name while keeping a general meaning ... so t and t' are both "time" but may be for different objects or have different uses as in a place-holder variable.
 
As Simon says. ( I had to day that!)
In particular, the prime notation is often used to distinguish a "moment about the origin" from a "moment about the mean" of a distribution as in https://en.wikipedia.org/wiki/Central_moment
 
Last edited:
tyvm
 

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