Mathematics, 15.07.2020 02:01 ccdarling7185

Suppose the number X of tornadoes observed in a particular region during a 1-year period has a Poisson distribution with λ = 9. (a) Compute P(X<=5).
(b) Compute P(6<= X<= 9)
(c) Compute P(10<= X)
(d) What is the probability that the observed number of tornadoes exceeds the expected number by more than 1 standard deviation?

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