Find the probability that more than 9 customers

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Ricky runs a hamburger stand by the beach. He estimates that 40% of his customers order their hamburger with cheese. Let's assume that Ricky's estimate is accurate and the odds are independent, and we select 20 customers at random from his hamburger stand.

a) Determine the probability that exactly 7 of the 20 get cheese on their burger.

b) Find the probability that more than 9 customers out of 20 get cheese on their burger.

c) What is the probability that fewer than 6 customers get cheese on their burger?

Reference no: EM132850718

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