My question goes as below:
A major warehouse facility has 10 semi-trailer loading bays, which can all be used simultaneously. On average only 7 bays are in use.
a. What is the probability that all bays will be in simultaneous use.
b. What is the probability that one or more semi-trailers will have to wait for a bay to become available.
c. Show a loading bay demand for zero to fifteen semitrailers.
Please suggest which distribution Binomial or Poisson to use for this question?