Demographics of social media news consumers: In 2017, the user of Facebook for news was distributed according to the following age groups

age percentage

18-29. 24.8

30-49. 40.1

50-64. 24.1

65 +. 11

Please convert all answers to decimal form

a. What is the probability that a Facebook New user selected at random is between 18 and 49 inclusive?

b. What is the probability that a Facebook new user selected at random is between 30 and 64 inclusive?

c. What is the probability that a selected Facebook new user under 65?