Q - A school has a classroom with 8 boys and 12 girls. 6 students are to be selected from that classroom at random by ballots. Based on this given, answer the following: a) What is the Probability Mass Function (PMF) of the number of boys in the selected group? b) What is the probability that all the selected students are girls? c) What is the expected number of boys in the group? d) What is the probability that the number of boys selected is 3 or more?

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