A marketing firm would like to test-market the name of a new energy drink targeted at 18 - to 29 -year-olds via socal media. Suppose a study found that 38 hi of adults (18 and older) do not use social media. Suppose the percentage of aduits age 30 and older is 7.496.5 suppose that the percentage of the adulk population that it either age 1879 or uses social media is 66.1V0. (a) What is the probability that a randomly selected adult uses social media? (b) What is the probability that a randomiy solected adut is aged 1829? (c) What is the probability that a randomiy selected adult is 1829 and a user of social media? A local bank reviewed its credit card policy with the intention of recalling some of its credit cards. In the past approximately 4 . of cantholders defauted, leaving the bank unable to collect the outstanding balance. Hence, management established a prior probability of 0.04 that any particular cardholder will defauit. The bask asse feund that the probability of missing a monthly payment is 0.23 for customers who do not default, of course, the probability of missing a manthly perment fer those who defrut is 1 . (a) Glven that a customer misses a monthly payment, compute the posterior probability that the customer will defaut. (Round your answer to 2 cecinal paces) x