Assume the probability that you will make a sale on any given telephone call is 0.24. Find the probability that you(a) make your first sal on the fifth call, (b) make your sale on the first, second, or third call, and (c) do not make a sale on the first three calls.

(a) P(make your first sale on the fifth call) (Round to three decimal places as needed.) (b) P(make your sale on the first, second, or third call) = (Round to three decimal places as needed.) (c) P(do not make a sale on the first three calls) (Round to three decimal places as needed.) Which of the events are unusual? Select all that apply. A. The event in part (a), "make your first sale on the fifth call", is unusual. B. The event in part (b), "make your sale on the first, second, or third call", is unusual. C. The event in part (c), "do not make a sale on the first three calls", is unusual. D. None of the events are unusual