Compute the Following Poisson Probabilities (To 4 Decimal Places) Using $\mu$

Short Answer

Compute the following Poisson probabilities (to 4 decimal places) using the Poisson formula:
a.
P(X = 3), if $\mu$ = 2.5
b.
P(X $\le$ 1), if $\mu$ = 2.0
c.
P(X $\ge$ 2), if $\mu$ = 3.0