Statistic vs Parameter

  • Thread starter danago
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  • #1
danago
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Main Question or Discussion Point

Hey. I just wanted to clear something up. My texbook often refers to statistics and parameters. Is a statistic simply a calculation made on a sample, whereas a parameter is a property of the whole property from which the sample was taken?

Thanks in advance,
Dan.
 

Answers and Replies

  • #2
quadraphonics
Yeah, basically. A common definition of "statistic" is "a function of a sample/observation." A parameter is a property of the underlying population distribution. For example, the sample mean is a statistic which, as the sample becomes large, approaches the population mean, which is a parameter.
 
  • #3
danago
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yep ok that answers my question :smile: thanks
 

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