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

Sampling distributions

  1. Feb 5, 2004 #1
    The mean probability of 100 observations is .0422. If you are not given the data for a sample size of 200, how do you find the mean probability of this data using the mean probability you found from .0422?

  2. jcsd
  3. Feb 6, 2004 #2
    Sorry, your question seems to be somewhat unclear to me. Is the .0422 the frequency of occurence of something observed? Well, then is should be the same (with some statistical variations of course) for most experiments.

    If you are aiming at an entirely different point you should clarify the kind of experiment you have in mind, because most of the answers will depend on that.
  4. Feb 9, 2004 #3
    RE: solved

    The Mean will stay approximately the same no matter how large the size of the sample. However, the standard deviation will decrease if the sample gets larger

    thanks for answering upsidedown;
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook