A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. Suppose a study found that 39% of adults (18 and older) do not use social media. Suppose the percentage of adults age 30 and older is 77%. Suppose that the percentage of the adult population that is either age 18-29 or uses social media is 63.3%. (a) What is the probability that a randomly selected adult uses social media? (b) What is the probability that a randomly selected adult is aged 18-297 (c) What is the probability that a randomly selected adult is 18-29 and a user of social media?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. Suppose a study
found that 39% of adults (18 and older) do not use social media. Suppose the percentage of adults age 30 and older is 77%. Suppose that the
percentage of the adult population that is either age 18-29 or uses social media is 63.3%.
(a) What is the probability that a randomly selected adult uses social media?
(b) What is the probability that a randomly selected adult is aged 18-29?
(c) What is the probability that a randomly selected adult is 18-29 and a user of social media?
Transcribed Image Text:A marketing firm would like to test-market the name of a new energy drink targeted at 18- to 29-year-olds via social media. Suppose a study found that 39% of adults (18 and older) do not use social media. Suppose the percentage of adults age 30 and older is 77%. Suppose that the percentage of the adult population that is either age 18-29 or uses social media is 63.3%. (a) What is the probability that a randomly selected adult uses social media? (b) What is the probability that a randomly selected adult is aged 18-29? (c) What is the probability that a randomly selected adult is 18-29 and a user of social media?
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