To 9 3. Lightning strikes occur in the area around the top of Mount Smokey at the average
rate of three per hour during summer afternoons.
ta
(a) Find the probability that there will be at most one lightning strike in this area
during a 2 hour period on a summer afternoon.
(b) Find the probability that there will be exactly 6 lightning strikes in this area
during a 2 hour period on a summer afternoon.