solve

Suppose that the random variable z, shown below, represents the number of speeding tickets a person received in a three-year period. P(z) represents the probability of a randomly selected person having received that number of speeding tickets during that period. Use the probability distribution table shown below to answer the following questions. [= | P(e) | fo | ores | a) What is the probability that a randomly selected person has received four tickets in a three-year period? P(z=4)= b) What is the probability that a randomly selected person has received four or more tickets in a three-year period? P(z 4)= c) What is the probability that a randomly selected person has received more than four tickets ina three-year period? P(r 4)