Assume that a stream is regulated by a reservoir so that all discharges fall between 200 and 700 cfs and any discharge within that range has an equal chance of occurrence.
(1) What is the probability that the discharge at any instant will equal or exceed 350 cfs?
(2) What is the probability that the discharge will fall within the range between 250 and 350 cfs?
(3) What is the probability that the discharge will fall within the range between 150 and 350 cfs?
(4) What is the probability that the discharge will equal 400 cfs?