A box contains 4 blue, 5 green and 4 yellow balls. Two balls are drawn with replacement. Find the probability that the first ball is blue and the second ball is yellow.
A
113
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B
16169
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C
20169
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D
413
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Solution
The correct option is B16169 Let A be the event that the first ball is blue and B be the event that the second ball is yellow. Since balls are drawn with replacement, so the size of the sample space remains constant. So the events A and B are independent events.