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anonymous

  • one year ago

8. (6pts).You have an urn that contains 12 balls, 5 yellow, 4 red, and 3 green. You randomly select two balls. a) What is the probability that you select two balls of the same color?

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  1. anonymous
    • one year ago
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    compute for each, then add

  2. anonymous
    • one year ago
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    for example two yellow is \[\frac{5\times 4}{12\times 11}\]

  3. anonymous
    • one year ago
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    you go the rest?

  4. anonymous
    • one year ago
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    Are you sure you can add the probabilities of dependent events?

  5. anonymous
    • one year ago
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    i am not sure what you mean by "dependent" you can add them because they are "disjoint" two yellow or two red or two green

  6. anonymous
    • one year ago
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    oh I understand. Thank you

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