1. According to the National Marine Manufacturers Association, 50.0% of the population of Vermont were boating participants during the most recent year. For a randomly selected sample of 20 Vermont residents, with the discrete random variable x 5 the number in the sam- ple who were boating participants that year, determine the following: Source: National Marine Manufacturers Association,
NMMA Boating Industry Report, p. 3.
a. E(x)
b. P(x # 8)
c. P(x 5 10)
d. P(x 5 12)
e. P(7 # x # 13)
2. In the town of Hickoryville, an adult citizen has a 1% chance of being selected for jury duty next year. If jury members are selected at random, and the Anderson family includes three adults, determine the probability that
a. none of the Andersons will be chosen.
b. exactly one of the Andersons will be chosen.
c. exactly two of the Andersons will be chosen.
d. all three Andersons will be chosen.