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

    Mar 17, 2013, 04:02 PM
    probability with random sample
    In summit county 60% of the voters are democrats. What is the probability that a random sample of ten summit county voters will contain:

    a). Exactly 6 democrats

    b). At least 7 democrats

    c). 0 democrats

    d). All democrats
    mmhdcat's Avatar
    mmhdcat Posts: 11, Reputation: 2
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    #2

    Mar 26, 2013, 02:16 PM
    The answer is A) exactly 6 democrats. If 60% of the county is democratic, then that means out of 100 citizens, 60 are democrats. If you simplify this, then out of 10 citizens, 6 are democrats.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
    Uber Member
     
    #3

    Mar 26, 2013, 03:24 PM
    This is the second time I have reminded you that AMHD does not answer homework - that's the policy. You agreed to AMHD rules when you opened your account.

    Please respect how AMHD operates.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #4

    Mar 27, 2013, 05:59 AM
    mmhdcat's response doesn't help at all, so in that sense he's not doing the OP's homework for her.

    Nicole: hint - use the binomial probability formula - it's in your text book. Post back showing us what you get for answers and we'll check them for you.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #5

    Mar 27, 2013, 06:29 AM
    ebaines, my laugh for the day!

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