MATH 130-One urn has 3 red and 2 white balls

One urn has 3 red and 2 white balls; a second urn has one red and 3 white.A single die is rolled and if a 1 or 2 comes up, a ball is drawn out of the first urn; otherwise, it is drawn from the second urn. If a red ball was drawn,what is the probability that it came from the first urn? The second urn?

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