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**MadeInNY** Would someone please help me to solve this question. It's not an assigned problem, but I believe if I understand how it works, that I could do my homework on my own, which what I want more than anything.

Twelve people work together: four of them are managers and eight of them are office workers. Two people are chosen at random from the twelve members of the group. Calculate the probability that one is a manager and one is an office worker. Express your answer as a fraction.

Thanks in advance