According to an airline, flights on a certain route are on time 75% of the time. suppose 25 flights are randomly selected and the number of on-time flights is recorded. (a) explain why this is a binomial experiment. (b) find and interpret the probability that exactly 15 flights are on time. (c) find and interpret the probability that fewer than 15 flights are on time. (d) find and interpret the probability that at least 15 flights are on time. (e) find and interpret the probability that between 13 and 15 flights, inclusive, are on time.