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It is known that 40% of people prefer cola drinks to iced tea. If 20 people...

It is known that 40% of people prefer cola drinks to iced tea. If 20 people are selected at random, what is the probability that

a) Between 4 and 13 (inclusive) of them will prefer cola drinks to iced tea?

Math   Statistics-And-Probability   
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Answer: 0.9740

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