Question: This is a math 1139 permutation and combinations (probability) they are going to choose 8 people. Specifically, 3 will be chosen randomly out of 19

This is a math 1139 permutation and combinations (probability) they are going to choose 8 people. Specifically, 3 will be chosen randomly out of 19 people who work in office B, and 2 will be chosen randomly out of 12 people who work in office C. I myself work in office A. How many different groups of 8 are possible under those conditions, and also how many groups are possible with me in them, andthe probability that I would be in the group that gets to go?

can you please help me to solve

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