Suppose that 50% of all young adults prefer McDonald's to Burger King when asked to state a preference. A group of 12 young adults were randomly selected and their preferences recorded. (Round your answers to three decimal places.)
(a)
What is the probability that more than 7 preferred McDonald's?
(b)
What is the probability that between 2 and 7 (inclusive) preferred McDonald's?
(c)
What is the probability that between 2 and 7 (inclusive) preferred Burger King?

Question

07-03-2021
Mathematics

Answered

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Suppose that 50% of all young adults prefer McDonald's to Burger King when asked to state a preference. A group of 12 young adults were randomly selected and their preferences recorded. (Round your answers to three decimal places.)
(a)
What is the probability that more than 7 preferred McDonald's?
(b)
What is the probability that between 2 and 7 (inclusive) preferred McDonald's?
(c)
What is the probability that between 2 and 7 (inclusive) preferred Burger King?

Sagot :

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