This should be the last.
A college basketball player who sinks 75% of his free throws comes to the line to shoot a "one and one" (if the first shot id successful he is allowed a second shot, but no second shot is taken if the first is missed; one point is scored for each successfull shot). Assume that the outcome of the second shot, if any, is independent of that of the first. Find the expected number of points resulting from the "one and one". Compare this with the expected number of points from a "two-shot foul", where a second shot is allowed, irrespective of the outcome of the first.
I do not know. I do not know.