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anonymous

  • one year ago

What is the theoretical probability of rolling a prime number on a standard number cube? A bag contains 11 red marbles, seven blue marbles, nine green marbles, and 13 yellow marbles. What is the theoretical probability of picking a blue marble from the bag?

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  1. anonymous
    • one year ago
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    @Mehek14

  2. welshfella
    • one year ago
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    what are the prime numbers in the set 1,2,3,4,5 and 6 ?

  3. anonymous
    • one year ago
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    2 3 5

  4. welshfella
    • one year ago
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    yes - oh - I should know this but isn't 1 prime?

  5. anonymous
    • one year ago
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    i dont think so

  6. welshfella
    • one year ago
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    No its not yes you are right so what is the probability of getting one of these 3 numbers?

  7. welshfella
    • one year ago
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    3 out of 6 right?

  8. welshfella
    • one year ago
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    3/6 = ?

  9. anonymous
    • one year ago
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    2/3

  10. welshfella
    • one year ago
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    No |dw:1438008180223:dw|

  11. anonymous
    • one year ago
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    oops :) thanx

  12. welshfella
    • one year ago
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    for the marble question probability of a blue = number of blues in the bag ----------------------- total number of marbles in the bag

  13. welshfella
    • one year ago
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    there are 7 blue marbles total number marbles = 11 + 7 + 9 + 13

  14. anonymous
    • one year ago
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    7/40

  15. welshfella
    • one year ago
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    yep

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