Question: There are 3 classes with 20. 22 and 25 students in each class for a total of 67 students. Choose one out of the 67

There are 3 classes with 20. 22 and 25 students in

There are 3 classes with 20. 22 and 25 students in each class for a total of 67 students. Choose one out of the 67 students uniformly at random, and let X denote the number of students in his or her class. What is ELK)

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