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An urn contains 4 marbles, either blue or green. The number of blue marbles is equally...

An urn contains 4 marbles, either blue or green. The number of blue marbles is equally likely to be 0, 1, 2, 3, or 4. Suppose we do 3 random draws with replacement, and the observed sequence is: blue, green, blue. What is the probability the urn contains just 1 blue marble?

(Round your answer to three decimal places. Example: if the true answer is 2/3, you should enter 0.667.)

Math   Statistics-And-Probability   
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