Acertain university has 10 vehicles available for use by faculty and staff. six of these are vans and four are cars. on aparticular day. only two requests for vehicles have been made. suppose that the two vehicles to be assigned are chosen ina completely random fashion from among the 10.a. let e denote the event that the first vehicle assigned is a van. what is f‘(e)? 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 f‘(e and f) (hint: use the definition of p(f\ e) .)