# Intuitive explanation of Fisher Information and Cramer-Rao bound [closed]

I am not comfortable with Fisher information, what it measures and how and how is it helpful. Also it's relationship with the Cramer-Rao bound is not apparent to me.

Can someone please give an intuitive explanation of these concepts?

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Cross-posted: stats.stackexchange.com/questions/10578/… –  cardinal May 10 '11 at 11:52