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GMAT prep probability

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jkelk Just gettin' started! Default Avatar
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GMAT prep probability Post Wed Mar 14, 2012 10:55 am
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    Hi

    Please help solve attached.

    Thanks,
    J
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    Neo Anderson Rising GMAT Star Default Avatar
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    Post Wed Mar 14, 2012 11:36 am
    Refer the figure attached:


    Quote:
    25% of those who are married are self employed
    => 25% of 156 = 39

    with this... calculate and fill in all the missing values in the table...
    now, probability of selecting a person who is self employed but not married = 31/248 = 1/8

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