The probability that a student has a donut for breakfast is 0.08.
a. If I ask students (at random) from a large university campus whether they had a donut for breakfast, what is the probability the twentieth person I ask will be the first one who had a donut for breakfast?
b. How many students do I expect to have to ask until I find the fourth one who had a donut for breakfast?
c. If I ask 150 students whether they had a donut for breakfast, what is the [expected number of students who did?
d. What is the probability the next student I ask did not have a donut for breakfast?