The mean of a Poisson random variable X is μ = 9. Compute
P(μ-2σ < X < μ + 2σ).
My reasoning is as follows:
P(9-2(9) < X < 9 + 2(9)) = P(-9 < X <27) . This is all I can think about doing at the moment. Feedback would be appreciated.
The mean of a Poisson random variable X is μ = 9. Compute
P(μ-2σ < X < μ + 2σ).
My reasoning is as follows:
P(9-2(9) < X < 9 + 2(9)) = P(-9 < X <27) . This is all I can think about doing at the moment. Feedback would be appreciated.