math

What are the odds in favor of drawing a card lower than a 5 from an ordinary deck of cards?

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  1. Assuming the ace is not considered a "number" card,
    there are 12 such cards (the 2 , 3, or 4 each times 4)

    prob of a number card less than 5 = 12/52 = 3/13
    prob of NOT a number card less than 5 = 10/13

    odds in favour of a card less than 5 = 3 : 10

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