Probability that adam gets exactly three gummi bears

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Gummi bears come in twelve flavors, and you have one of each flavor. Suppose you split your gummi bears among three people (Adam, Beth, Charlie) by randomly selecting a person to receive each gummi bear. Each person is equally likely to be chosen for each gummi bear.

(a) What is the probability that Adam gets exactly three gummi bears?

(b) If you know that each person recieved at least one gummi bear, what is the probability that Adam gets exactly three gummi bears?

(c) What is the expected number of gummi bears that Adam gets?

(d) If you know that each person recieved at least one gummi bear, what is the expected number of gummi bears that Adam gets?

We're not sure how to include the idea that there is a 1/3 chance for each of the three people to get a gummy bear and how to split the gummies between the three people. An answer with explanation is much appreciated.

Reference no: EM131524218

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