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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

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    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]
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