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anonymous

  • one year ago

A card is chosen from a standard deck of cards. which is 52. What is the probability that the card is a club, given it's black? A) 1/13 B) 1/4 C) 1/2 D) 4/13 There 13 clubs and 26 black so i got it down to either A or D but i need help trying figure out the top half.

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  1. amistre64
    • one year ago
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    how would you define the given probability in general?

  2. anonymous
    • one year ago
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    you're choosing from 13 so the bottom half have to be 15 in less you can simple it from the top number which i don't know what top number is.

  3. amistre64
    • one year ago
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    you are choosing from black cards .. how many are black?

  4. anonymous
    • one year ago
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    26

  5. amistre64
    • one year ago
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    so, given 26 black cards .. how many of them are clubs??

  6. anonymous
    • one year ago
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    13

  7. amistre64
    • one year ago
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    so our probability is defined as: number favored ------------- number total 13 favored out of 26 total

  8. anonymous
    • one year ago
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    so you have to simple it to get the answer?

  9. amistre64
    • one year ago
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    sure, why not

  10. amistre64
    • one year ago
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    what is 13/26 ?

  11. anonymous
    • one year ago
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    1/2

  12. amistre64
    • one year ago
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    then lets not dismiss the correct answer for A or D shall we :)

  13. anonymous
    • one year ago
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    no we shall not

  14. anonymous
    • one year ago
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    thank you for helping me!

  15. amistre64
    • one year ago
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    youre welcome, and good luck

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