Four buses carrying 148 students from the same school arrive at
a football stadium. The buses carry 40, 33, 25, and 50 students.
One of the students is randomly selected. Let X denote the number
of students that were on the bus carrying the randomly selected
student. One of the 4 bus drivers is also randomly selected. Let Y
denote the number of students on her bus.
- Which of E[X] or E[Y] do you think is larger? Why?
- Compute E[X] and E[Y].