Statistic vs Parameter

  1. danago

    danago 1,125
    Gold Member

    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.
     
  2. jcsd
  3. 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.
     
  4. danago

    danago 1,125
    Gold Member

    yep ok that answers my question :smile: thanks
     
Know someone interested in this topic? Share a link to this question via email, Google+, Twitter, or Facebook

Have something to add?