According to an airline, a particular flight is on time 85% of the time. Suppose 9 flights are randomly selected and the number of on time flights is recorded.a) The probability of exactly 7 flights are on time. b) The probability that at least 7 flights are on time.c) The probability that fewer than 7 flights are on time.d) The probability that between 5 and 7 flights, inclusive, are on time.