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Question 10: (General probability) An ofce desk drawer has 3 green, 2 white and 5 black pens. If a pen is picked at random from

Question 10: (General probability) An ofce desk drawer has 3 green, 2 white and 5 black pens. If a pen is picked at random from the drawer and replaced back into the drawer and the process is repeated 4 times, what is the probability of drawing 2 black pens and 2 white pens\

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