President O missed independently 25% of the WH-meetings . There were 2 WH-meetings scheduled on each of the five days in a week. Find the probability that the president (a) (2.5 points) missed all these meetings. (b) (2.5 points) missed exactly one of these meetings. (c) (2.5 points) missed at least one of these meetings. (d) (2.5 points) missed at least one meeting every day