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Thread: Please help!

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    Please help!




    I am a 58 yr old Grandpa looking to see if there is Shananagan's are going on at my work. I want to find out the probability in this scenario. You have 280 balls in a hat. 276 are red and only 4 are blue. In 20 attempts to pick a ball out of the hat, what is the probability all four of the blue balls are selected?

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    Re: Please help!

    Is this with or without replacement?
    I don't have emotions and sometimes that makes me very sad.

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    Re: Please help!


    It is without replacement.

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