A hypothetical population consists of eight individuals ages 14, 15, 16, 17, 18, 20, 25, and 30 years. (Enter your answers to three decimal places.)
A hypothetical population consists of eight individuals ages 14, 15, 16, 17, 18, 20, 25, and 30 years. (Enter your answers to three decimal places.)
(a) What is the probability that a person in this population is a teenager?
(b) What is the probability of selecting a participant who is at least 20 years old?
(c) What is the probability of selecting a participant older than 30?