1. According to the National Center for Education Statistics, 20.5% of all bachelor's degrees are awarded to students majoring in business. If 15 students receiving bachelor's degrees are selected at random, what is the expected number of business majors in the group?
2. According to the American Association of Community Colleges, 71% of the full-time faculty at community colleges have master's degrees. If a group of 30 fulltime community college faculty are selected at random, what is the expected number of master's degree holders in the
group?
3. A die is rolled 30 times. What is the expected number of times that a 5 or a 6 will appear?
4. Ted is a consistent .275 hitter. How many hits is he expected to have in his next 40 at-bats?