Question: A train station averages 6 arrivals per hour. Use the appropriate table to find the following probabilities.

a) That exactly 5 trains arrive at the station in one hour.

b) That at most 5 trains arrive in the station in one hour.

c) That at least 6 trains arrive in the station in one hour.

d) That exactly 7 trains arrive at the station in a 90 minute period.

e) That exactly 5 trains arrive in a 30 minute period.