# Question

According to ﬂightstats.com, American Airlines ﬂights from Dallas to Chicago are on time 80% of the time. Suppose 15 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 10 ﬂights are on time.

(c) Find and interpret the probability that fewer than 10 ﬂights are on time.

(d) Find and interpret the probability that at least 10 ﬂights are on time.

(e) Find and interpret the probability that between 8 and 10 ﬂights, inclusive, are on time.

(a) Explain why this is a binomial experiment.

(b) Find and interpret the probability that exactly 10 ﬂights are on time.

(c) Find and interpret the probability that fewer than 10 ﬂights are on time.

(d) Find and interpret the probability that at least 10 ﬂights are on time.

(e) Find and interpret the probability that between 8 and 10 ﬂights, inclusive, are on time.

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