The Pew Internet & American Life Project produces reports that explore the impact of the Internet on many facets of our daily life, whether at home, school, or the office. In its January 2005 Tracking Survey, it found that more than 80% of 18- to 29-year-olds use the Internet. Consider a randomly selected group of ten 18- to 29-yearolds.

Source: http://www.pewinternet.org/trends/User_Demo_ 03.07.05.htm

a. What is the probability that exactly eight use the Internet?

b. What is the probability that at least five use the Internet?