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

    Oct 20, 2007, 07:30 PM
    Probability Request for Answer
    If there is a vitamin that is marked 6 ounces with a Standard Deviation of .3 ounces--what percentage of all bottles produced contains more thant 6.51 ounces of vitamins? What contains less than 5.415?

    I need to show work and do not even know how to start this problem. Help!:confused:
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Oct 21, 2007, 01:13 PM
    Just use:



    For instance, the first was is for more than 6.51



    Now, look up z=1.7 in the z-table. It corresponds to 0.9554

    You want more than, so subtract from 1 and get 0.0446

    4.46% are > 6.51

    Now, do the other. Taking note it is for less than.
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