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    pjrodriguez114's Avatar
    pjrodriguez114 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 27, 2009, 08:56 PM
    Probability at least 1 is chosen?
    the question I have is...

    there are:

    21 yellow jelly beans
    30 green jelly beans
    36 red jelly beans
    87 total jelly beans

    what is the probability that at least 1 is yellow?

    I don't know what to do here. I tried doing 1-p(not yellow) but its not giving me the right answer.

    any help would be great!
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Sep 28, 2009, 04:29 AM
    You did not state how many are being drawn. With replacement or without replacement?
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