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thoconnery Group Title

a bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a red marble, replacing it, and then picking a black marble?

  • one year ago
  • one year ago

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  1. sauravshakya Group Title
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    P(R and B) = P(R) * P(B)

    • one year ago
  2. sauravshakya Group Title
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    Can u find P(R) ?

    • one year ago
  3. thoconnery Group Title
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    uhh...i dont exactly know what P(R) is.

    • one year ago
  4. sauravshakya Group Title
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    Probability of picking a red marble

    • one year ago
  5. thoconnery Group Title
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    5/15 so 1/3

    • one year ago
  6. sauravshakya Group Title
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    Yes. Now find P(B)

    • one year ago
  7. thoconnery Group Title
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    4/15

    • one year ago
  8. sauravshakya Group Title
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    Great Now, find P(R and B)

    • one year ago
  9. thoconnery Group Title
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    9/15...3/5

    • one year ago
  10. sauravshakya Group Title
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    P(R and B) =P(R) * P(B) = 1/3 *4/15 =?

    • one year ago
  11. thoconnery Group Title
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    4/45 ? i think

    • one year ago
  12. sauravshakya Group Title
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    \[\checkmark\]

    • one year ago
  13. thoconnery Group Title
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    thank you so much!!

    • one year ago
  14. sauravshakya Group Title
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    welcome

    • one year ago
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