United Airlines' flights from Denver to Seattle are on time 50 % of the time. Suppose 9 flights are randomly selected, and the number on-time flights is recorded. Round answers to 3 significant figures.
(a) The probability that exactly 4 flights are on time is =
(b) The probability that at most 3 flights are on time is =
(c) The probability that at least 8 flights are on time is =
