A university has 10 vehicles available for use by faculty and staff. Six of these are vans and four are cars. On a particular day, only two requests for vehicles have been made. Suppose that the two vehicles to be assigned are chosen at random from the 10 vehicles available.

a. Let E denote the event that the first vehicle assigned is a van. What is PsEd?

b. Let F denote the event that the second vehicle assigned

is a van. What is P(F|E)?

c. Use the results of Parts (a) and (b) to calculate P(E and F) See Example 6.23.