LEt X have a Poisson distribution with mean = 4. Show that P(u -2sigma < X < u +2sigma) = .931 anyone know how i should go about starting this problem? stumped.
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What is the CDF and standard deviation of the Poisson distribution?
moo, I mean $\displaystyle \mu=\sigma=4$ So calculate $\displaystyle P(4-8<X<4+8)$ for a Poisson with moo=4. which is F(11) btw.
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