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nuccioreggie

  • one year ago

Jamie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randomly from the deck, records its type, and replaces it in the deck. Jamie has already recorded three baseball cards and nine football cards. Based on these data, what is, most likely, the number of baseball cards in the deck? 12 15 24 30

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  1. nuccioreggie
    • one year ago
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    @Michele_Laino

  2. nuccioreggie
    • one year ago
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    its 15 @Michele_Laino

  3. Michele_Laino
    • one year ago
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    the experimental probability, to get a baseball card, is: favorable outcomes/ possible outcomes= 3/(3+9)=...?

  4. nuccioreggie
    • one year ago
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    10

  5. nuccioreggie
    • one year ago
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    its 15

  6. Michele_Laino
    • one year ago
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    what is 3/12?

  7. nuccioreggie
    • one year ago
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    0.25

  8. Michele_Laino
    • one year ago
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    correct! so the requested number, is given by the subsequent computation: probability* possible outcomes= 0.25*60=...?

  9. nuccioreggie
    • one year ago
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    15 i already said that

  10. Michele_Laino
    • one year ago
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    that's right!

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