Question: The Prescott City Fire Department handles both emergency medical calls as well as fires, although the fires are less than in prior years. The Fire Chief, Harry (the match) Smolderer, is studying a request for additional emergency resources from his two assistant chiefs. The two assistant chiefs, Big Chief and Super Chief, tell Harry that the probability that an incoming call to the Department will be for medical assistance is P = 0.75.

A) Assuming that the successive calls are independent of each other, what is the probability that three successive calls will be for medical emergencies?

B) What is the probability that the first call will be for medical assistance and the second call is not; it is a call for a fire, or similar problem?