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help123please.

  • 3 years ago

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  1. help123please.
    • 3 years ago
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  2. help123please.
    • 3 years ago
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    @Mertsj

  3. Mertsj
    • 3 years ago
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    how many cards in all?

  4. help123please.
    • 3 years ago
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    10

  5. Mertsj
    • 3 years ago
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    How many red?

  6. help123please.
    • 3 years ago
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    4

  7. Mertsj
    • 3 years ago
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    What's the probability you will draw a red card?

  8. help123please.
    • 3 years ago
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    4/10?

  9. Mertsj
    • 3 years ago
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    Reduce it.

  10. help123please.
    • 3 years ago
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    ok 2/5

  11. Mertsj
    • 3 years ago
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    So you draw the red card, replace it and draw another card. What is the probability the next card you draw will be red?

  12. help123please.
    • 3 years ago
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    well, if you draw a red card thats 4/10, then if u replace it (put it back) the chances of getting a red card don't change

  13. Mertsj
    • 3 years ago
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    So why don't you just say 2/5?

  14. help123please.
    • 3 years ago
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    so the answer would be D?

  15. Mertsj
    • 3 years ago
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    Multiply those two probabilities.

  16. help123please.
    • 3 years ago
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    2 /5 x 2/5 = 4/25

  17. Mertsj
    • 3 years ago
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    yep

  18. help123please.
    • 3 years ago
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    tnx, i get it now.

  19. Mertsj
    • 3 years ago
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    yw

  20. help123please.
    • 3 years ago
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    :)

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