Question: Please show your steps. Thanks! Question 5 Assume that each person's (unique) favorite animal is independently and equally likely to be one of 23 possibilities.

Please show your steps. Thanks!

Question 5 Assume that each person's (unique) favorite animal is independently and equally likely to be one of 23 possibilities. For a group of 81 people: What is the expected number of animals that are the favorite of exactly 7 people

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