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2. There are 11 teachers, 12 students and 5 janitor names in a hat. You reach in and select 4 names at one time. What

2. There are 11 teachers, 12 students and 5 janitor names in a hat. You reach in and select 4 names at one time. What is the probability that you get 2 teachers, 1 student and 1 janitor? What is the probability that you don't get any students

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