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Thread: minimum variance bound

  1. January 2nd 2013, 07:57 AM #1
    JDAWES
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    minimum variance bound

    how do you find the likelihood of lambda ^x / x! ?
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  2. January 2nd 2013, 08:07 AM #2
    HallsofIvy
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    Re: minimum variance bound

    What do you mean "likeliehood"? Is x a random variable? If so, what is its distribution?
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  3. January 2nd 2013, 08:34 AM #3
    JDAWES
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    Re: minimum variance bound

    Ok using the cramer-Rao inequality find the minimum variance bound for unbiased estimators of lambda?

    The probability function is the poisson distribution, e^-lambda * lambda^x / x!

    Iv tried working it out and i get lambda/-n^2!!

    Cheers for helping me with this!!
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