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A study of 1,000 randomly selected flights of a major airline showed that 769 of the flights arrived on time. What is the probability of

A study of 1,000 randomly selected flights of a major airline showed that 769 of the flights arrived on time. What is the probability of a flight arriving on time?

A) 391/500

B) 109/500

C) 500/109

D) 500/391

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