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Thread: Probabiilities help

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    Probabiilities help




    The question I am trying to answer is:
    What is the probability of dealing three black cards from a standard deck when dealing them from a standard deck one at a time with replacement?

    I have tried P(B,B,B)=P(B)*P(B)*P(B)= (26/52)(26/52)(26/52) but got a ridiculous number, then I tried 26(3)=78 and 52(3)=156=1/2-0.05

    Am I way off? I am an older college student trying to pass statistics for my degree and I have NEVER taken algebra, so I feel like I am going crazy!!
    Thank you!!

  2. #2
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    Re: Probabiilities help

    Your first try is the correct one. What is so ridiculous with (26/52)(26/52)(26/52) = 0.5^3 = 1/8?

  3. The Following User Says Thank You to Englund For This Useful Post:

    klee04268 (07-05-2015)

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    Re: Probabiilities help

    I got 17576/140608!! Must have put something in wrong!!! Thank you!!!!!!

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    Re: Probabiilities help

    17576/140608 = 1/8

  6. The Following User Says Thank You to Englund For This Useful Post:

    klee04268 (07-05-2015)

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    Re: Probabiilities help


    You rock!!

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