There are 5 boxes. Box n, where n=1....5, contains n+6 balls. One of the balls in boxes 3, 4 and 5 is red. All other balls are white A bcx and a ball in the box are picked up at random. • (a) What is the probability that a red ball in box 4 is taken? • (b) What is the probability that a red ball is taken? • (c) Given that a red ball is taken, what is the probability that box 4 was selected?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Probability
There are 5 boxes. Box n, where n= 1....5, contains n+6 balls. One of the
balls in boxes 3, 4 and 5 is red. All other balls are white A box and a ball in
the box are picked up at random.
• (a) What is the probability that a red ball in box 4 is taken?
• (b) What is the probability that a red ball is taken?
• (c) Given that a red ball is taken, what is the probability that box 4 was
selected?
Answer (just the probabilities) (a)/(b)/(e)
Transcribed Image Text:There are 5 boxes. Box n, where n= 1....5, contains n+6 balls. One of the balls in boxes 3, 4 and 5 is red. All other balls are white A box and a ball in the box are picked up at random. • (a) What is the probability that a red ball in box 4 is taken? • (b) What is the probability that a red ball is taken? • (c) Given that a red ball is taken, what is the probability that box 4 was selected? Answer (just the probabilities) (a)/(b)/(e)
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