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probability white ball or even number

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Source: — Data Sufficiency |
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by logitech » Fri Jan 09, 2009 1:01 pm
We are trying to find

W/25 + Even/25 - White Even/25

ST1) White Even/25 = 0

INSUF

ST2) W/25-Even/25 = 0.2

INSUF

together still insuf

E
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by aj5105 » Fri Jan 09, 2009 6:59 pm
P(white or even) = P(white) + P(even) - P(white and even)


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