The percentage of adult users on the internet who use facebook has increased over time Of adult inte

/in /by

The percentage of adult users on the internet who use facebook has increased over time Of adult internet users age 18-49, 81% use facebook Of adult internet users age 50 and older, 54% use facebook 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 Facebook, what is the probability that he/she is age 18-49?