1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Negative Binomial and Chi-square

  1. Sep 30, 2011 #1
    can any one help me with this question :

  2. jcsd
  3. Sep 30, 2011 #2

    Stephen Tashi

    User Avatar
    Science Advisor

    I haven't looked at the problem closely. Is there some difficulty in solving the simultaneous equations for p and k ?

    [tex] \bar{x} = \frac{ k(1-p)}{p} [/tex]
    [tex] s^2 = \frac{k(1-p)}{p^2} = \frac{\bar{x}}{p}[/tex]
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook