Collins Willis
09/16/2023 · Senior High School
Jomework According to fightstats.com, American Airlines flights from Dallas to Chicago are on time \( 80 \% \) of the tin (a) Explain why this is a binomial experiment. (b) Determine the values of \( n \) and p . (c) Find and interpret the probability that exactly 9 flights are on time. (d) Find and interpret the probability that fewer than 9 flights are on time. (e) Find and interpret the probability that at least 9 flights are on time. (f) Find and interpret the probability that between 7 and 9 flights, inclusive, are on time. (a) Identify the statements that explain why this is a binomial experiment. Select all that apply.
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(a) This is a binomial experiment because:
1. Fixed number of trials (flights).
2. Independent trials.
3. Two possible outcomes (on time or not).
4. Constant success probability (on time).
(b) \( n = 10 \), \( p = 0.8 \).
(c) Calculate the probability of exactly 9 flights being on time using the binomial formula.
(d) Sum the probabilities of 0 to 8 flights being on time.
(e) Sum the probabilities of 9 to 10 flights being on time.
(f) Sum the probabilities of 7 to 9 flights being on time.
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