Consider the share of core listenership by daypart information given in Figure 4.7 (page 177).
a. Find an estimate of P(KPWR | 3-7 P.M.), the probability that a randomly selected Los Angeles resident who listens to the radio during the 3-7 P.M. daypart would name KPWR as his or her primary station during that daypart.
b. Find P(KLAX | 3-7 P.M.), P(KROQ | 3-7 P.M.), P(KIIS | 3-7 P.M.), and P(KFI | 3-7 P.M.).
c. Suppose that the AccuRatings national survey estimates that the probability that a randomly selected Los Angeles resident will be listening to the radio at an average moment between 5 and 6 P.M. is .256. Use this survey result and the estimate in part a to estimate the probability that a randomly selected Los Angeles resident will be listening to station KPWR at an average moment between 5 and 6 P.M.
d. Repeat part c for each of KLAX, KROQ, KIIS, and KFI.
e. Find an estimate of the probability that a randomly selected Los Angeles resident will be listening to one of the five most highly rated stations in the Los Angeles market (KPWR, KLAX, KROQ, KIIS, or KFI) at an average moment between 5 and 6 P.M.