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    my8kids's Avatar
    my8kids Posts: 1, Reputation: 1
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    #1

    Sep 5, 2012, 04:08 PM
    a bag contains 5 blue, 4 red, 9 white, and 6 green marbles. If a marble is drawn at r
    a bag contains 5 blue, 4 red, 9 white and 6 green marbles. If a marble is drawn at random and replaced 100 times, how many times can you expect to draw a green marble?
    teacherjenn4's Avatar
    teacherjenn4 Posts: 4,005, Reputation: 468
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    #2

    Sep 5, 2012, 05:22 PM
    We help with homework here. We don't just give out answers. You need to try to do the problem and we will help you.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #3

    Sep 6, 2012, 06:16 AM
    Hint: the expected number of times you draw green = the probability of drawing green on one draw times the total number of draws. So to start - if you draw one marble can you tell us the probability that the marble would be green?
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