Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Statistics: moment prime'?

  1. Apr 10, 2013 #1
    sometimes in statistics there is a prime ( ' ) after the variable for moment ( u sub r ) what does that mean?
     
  2. jcsd
  3. Apr 10, 2013 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    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.
     
  4. Apr 10, 2013 #3

    Stephen Tashi

    User Avatar
    Science Advisor

    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: Apr 10, 2013
  5. Apr 10, 2013 #4
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Statistics: moment prime'?
  1. Statistics notation (Replies: 4)

  2. Particle Statistics (Replies: 1)

Loading...