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A professor is returning exams to his 25 students. However, the professor is very drunk and gives each student one exam at random. Let X

A professor is returning exams to his 25 students. However, the professor is very drunk and gives each student one exam at random. Let X be the number of students who, by chance, received their own exam. 1. What is the expected value of X? 2. Rank the following possibilities from most to least likely. *X=23 *X=24 *X=25

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