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anonymous

  • one year ago

A bag contains 3 red marbles, 4 blue marbles, and 5 white marbles. What is the probability of pulling out a white marble, and then a blue marble if none are replaced?

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  1. anonymous
    • one year ago
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    lets take it one step at a timie how many marbles in the bag total?

  2. anonymous
    • one year ago
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    12

  3. anonymous
    • one year ago
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    ok and there are 5 white ones, so what is the probability that the first one selected is white?

  4. anonymous
    • one year ago
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    5/12?

  5. anonymous
    • one year ago
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    right now lets hold on to that number for a minute the white marble is gone, how many are left in the bag total?

  6. anonymous
    • one year ago
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    7

  7. anonymous
    • one year ago
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    hmm no only one white marble is gone, not all five

  8. anonymous
    • one year ago
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    oh sorry 11?

  9. anonymous
    • one year ago
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    right and 4 are blue, so what is the probability that the next one selected is blue?

  10. anonymous
    • one year ago
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    4/11?

  11. anonymous
    • one year ago
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    yes

  12. anonymous
    • one year ago
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    take those two numbers we got and multiply them to get your answer

  13. anonymous
    • one year ago
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    swag thank you

  14. anonymous
    • one year ago
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    yw

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