Question 2: (a Mark) Urn A contains 5 white marbles and 2 black marbles. Urn B contains 5 white marbles and 2 black marbles. A marble is randomly selected from Urn A and placed in Urn B. Then a marble is randomly selected from Urn B. What is the probability that the marble selected is black?
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Step 1: The probability of selecting a black marble from Um A is 2/6 = 1/3. Show more…
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