Results 1 to 2 of 2

Math Help - Polulation and Sample

  1. #1
    Newbie
    Joined
    May 2009
    Posts
    7

    Polulation and Sample

    Does anyone know that how can I distinguish data whether it is population or sample?

    There are 2 formulas for finding out variance but i don't really get how to find out which quesitons is asking me to use population or sampe...


    Thanks.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Jan 2009
    Posts
    591
    Quote Originally Posted by Changhons View Post
    Does anyone know that how can I distinguish data whether it is population or sample?

    There are 2 formulas for finding out variance but i don't really get how to find out which quesitons is asking me to use population or sampe...


    Thanks.
    If you have ALL of the data possible for a group then you have the entire population -- this is rare.
    If you have a representative quantity of data then that is a sample -- this is most common.

    If you have ten olives and are testing for specific items in those ten olives only then you have a total population.

    However, if you are testing for something that is applicable to ALL olives, even though you many have several million data pieces, then that is a sample.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Sample distribution of sample variance
    Posted in the Statistics Forum
    Replies: 10
    Last Post: November 16th 2009, 01:12 PM
  2. variance of sample mean and sample standard deviation
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: July 24th 2009, 06:20 AM
  3. Replies: 2
    Last Post: May 29th 2009, 10:32 AM
  4. Sample Random Sample Question 2
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: January 7th 2008, 07:58 AM
  5. Replies: 1
    Last Post: November 20th 2006, 02:44 PM

Search Tags


/mathhelpforum @mathhelpforum