Consider the Poisson distribution with parameter λ=2\lambda = 2λ=2. What is P(X=1)P(X=1)P(X=1)?
2e−22e^{-2}2e−2
e−2e^{-2}e−2
4e−24e^{-2}4e−2
0.5e−20.5e^{-2}0.5e−2