how do you find the likelihood of lambda ^x / x! ?

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- Jan 2nd 2013, 07:57 AMJDAWESminimum variance bound
how do you find the likelihood of lambda ^x / x! ?

- Jan 2nd 2013, 08:07 AMHallsofIvyRe: minimum variance bound
What do

**you**mean "likeliehood"? Is x a random variable? If so, what is its distribution? - Jan 2nd 2013, 08:34 AMJDAWESRe: 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!!