What is the probability that the ball chosen from box a

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Problem: Consider three boxes with numbered balls in them. Box A contains six balls numbered 1; : : : ; 6. Box B contains twelve balls numbered 1; : : : ; 12. Finally, box C contains four balls numbered 1; : : : ; 4. One ball is selected from each urn uniformly at random.

Required:

Question 1: What is the probability that the ball chosen from box A is labeled 1 if exactly two balls numbered 1 were selected?

Question 2: What is the probability that the ball chosen from box B is 12 if the arithmetic mean of the three balls selected is exactly 7?

Reference no: EM132438187

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