Assume a Poisson distribution with = 5.0. What is the probability that a. X = 1?

Question:

Assume a Poisson with λ = 5.0. What is the probability that
a. X = 1?
b. X < 1?
c. X > 1?
d. X ≤ 1? Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...