Refer to the Pew Research Center Survey (December 2015) on cable TV subscriptions, Exercise 2.4. In a sample of 2,001 U.S. adults, 1,521 reported that they currently receive cable or satellite TV service at home, 180 revealed that they have never subscribed to cable/satellite TV service at home, and 300 admitted that they are "cord cutters," i.e., they canceled the cable/satellite TV service. One of the surveyed adults is randomly selected and his or her cable TV subscription status is determined.

a. List the sample points for this study.

b. Assign reasonable probabilities to the sample points.

c. What is the probability that the adult has never subscribed to cable/satellite TV service?

d. What is the probability that the adult has currently or previously subscribed to cable/satellite TV service?