The quality control manager of Marilyn's HESI Cookies is inspecting a batch of chocolate-chip cookies that has just been baked. If the production process is in control, the mean number of chocolate-chip parts per cookie is 6.0. What is the probability that in any particular cookie being inspected
a. Fewer than five chocolate-chip parts will be found?
b. Exactly five chocolate-chip parts will be found?
c. Five or more chocolate-chip parts will be found?
d. Either four or five chocolate-chip parts will be found?