News Report 2017. A Pew Research report on September 13, 2017, reported that 61% of 1829 year
Question:
News Report 2017. A Pew Research report on September 13, 2017, reported that 61% of 18–29 year olds watch TV using online streaming services. (By contrast, only 5% of those 65 and older watch online.) The table below shows the proportions within each age group using various sources to watch TV, as well as the percentage of the U.S. population that each age group represents.
Age Group 18–29 30–49 50–64 65+ Cable or satellite 0.31 0.52 0.70 0.84 Online streaming 0.61 0.37 0.10 0.05 Digital antenna 0.05 0.07 0.15 0.07 Percent of U.S. population 16.5 27.1 19.0 13.0
a) What is the probability that a randomly selected person in the United States is under 18 years old?
b) Given that a person is 55 years old, what is the probability that they watch TV via online streaming?
c) What is the probability that a randomly selected person in the United States is 18–29 years old and watches TV online?
d) What is the probability that a randomly selected person in the United States is 18 or older and watches TV via cable or satellite?
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