Mathematics, 10.12.2021 23:10 babyambs50

A statistics teacher had a class of 50 students, of which 31 passed. The teacher decides to draw 3 students WITHOUT REPLACEMENT to ask their opinion about the subject.

Let Y be the total number of students approved in the course among those drawn by the teacher to give his opinion.

Under these conditions, do what is asked:

1. Determine the probability function of Y
2. Determine the mean and variance of Y

Answers: 2

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A statistics teacher had a class of 50 students, of which 31 passed. The teacher decides to draw 3...

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