The number of parking tickets issued in a certain city on
any given weekday has a poisson distribution with
parameter m 5 50.
a. calculate the approximate probability that between
35 and 70 tickets are given out on a particular day.
b. calculate the approximate probability that the total
number of tickets given out during a 5-day week is
between 225 and 275.
c. use software to obtain the exact probabilities in (a)
and (b) and compare to their approximations.