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? asked in Science & MathematicsMathematics · 8 years ago

Math question about probability?

Three cards are selected at random, without replacement, from a pack of 52 cards. Using a tree diagram, find the probability distribution of the number of honours (A, K, Q, J, 10) obtained.

If you could show your work so that I could follow along that would be great! I think the key is that they aren't replaced, thank you!

2 Answers

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  • M3
    Lv 7
    8 years ago
    Favorite Answer

    there are 20 such cards in 52

    P(x) = 20Cx*32C(3-x)/52C3, x = 0 to 3

    x.... | 0 ............ | 1............. | 2............. | 3

    p(x) | 248/1105 | 496/1105 | 304/1105 | 57/1105

  • Chitra
    8 years ago

    A-4/52=1/13(for all same answer)

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