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

Homework Help: Average fluctuation

  1. Jan 27, 2010 #1
    1. The problem statement, all variables and given/known data

    I have been asked find the average fluctuation in a certain value. But I don't know what that means. Say x fluctuates about a mean.

    [tex](\overline{(\Delta V)^{2}})^{1/2}?[/tex]

    But that's the root mean square fluctuation, which isn't the same. Then how about

    [tex]\overline{\Delta V}[/tex]

    now that's the average fluctuation right?
    But if I only know the average value, and the root mean square fluctuations, then how can I find the plain old average fluctuation from that?
    Last edited: Jan 27, 2010
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted