In: Statistics and Probability
According to an airline, flights on a certain route are on time 80% of the time. Suppose 11 flights are randomly selected and the number of on-time flights is recorded. (a) Determine the values of n and p. (b) Find and interpret the probability that exactly 9 flights are on time. (c) Find and interpret the probability that fewer than 9 flights are on time. (d) Find and interpret the probability that at least 9 flights are on time. (e) Find and interpret the probability that between 7 and 9 flights, inclusive, are on time.