Urn 1 has 4 black marbles and 16 red marbles (for 20 total). Urn 2 has 8 black marbles and 2 red marbles (for 10 total).

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answerhappygod
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Urn 1 has 4 black marbles and 16 red marbles (for 20 total). Urn 2 has 8 black marbles and 2 red marbles (for 10 total).

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Urn 1 has 4 black marbles and 16 red marbles (for 20 total). Urn
2 has 8 black marbles and 2 red marbles (for 10 total). If two
black marbles are chosen from the selected Urn, what is the
probability that the selected Urn is Urn 1?
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