A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership that carries the car. She estimates that the probability that anyindependent dealership will have the car will be 28%. We are interested in number of dealerships she must call.

d. On average, how many dealerships would we expect her to have to call until she

finds one that has the car? choose your answer from the following:

a) 0.01 b) 1.39 c) 1 d) 25/7 e) 0.04