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QUESTION 7 The table shows the results of a survey that asked 800 adults whether they use social media (Facebook, Twitter, and so on) regularly. The following table is based on the results of the survey. Using social Age (years) media 18-34 (A) 35-44 (B) 45+ (C) Total Yes (Y) 216 144 120 480 No (N) 144 96 80 320 Total 360 240 200 800 a. What is the probability that a randomly selected adult is using social media? Round your answer to four decimal places. b. What is the probability that a randomly selected adult is 35-44 years of age or uses social media? Round your answer to four decimal places. c. What is the probability that a randomly selected adult uses social media, given he/she is 35-44 years of age? Round your answer to four decimal places. d. Are the events "The adult is 35-44 years of age" and "The adult uses social media" independent? Justify your answer using relevant probabilities