Question

Q7

The percentage of adult users of the Internet who use social media has increased over time. Of adult Internet users age 18–49,

The percentage of adult users of the Internet who use social media has increased over time. Of adult Internet users age 18-49, 81% use social media. Of adult Internet users age 50 and older, 53% use social media. Assume that 52% of adult Internet users are age 18-49. (a) What is the probability that a randomly selected adult user of the Internet is age 50 or older? (b) Given that an adult Internet user uses social media, what is the probability that he/she is age 18-49? (Round your answer to four decimal places.)

Answer 1

PCA/E) - 8 P(A/E) = 5 Oo P/E/A) = 2 * 81 5288) 10000 4212+ 2544 1oooo 70 + 48 X 53 100 100 x 8 100 PLE/A - 42/2 = 0.6234. 6756