<PRE><B>Question 416434</B>
In one town, 35% of households have a cat, 23% of households have a
dog, and 7% have both. What is the probability that a household has a
dog if you know that it has a cat?
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P(dog|cat) = P(dog and cat)/P(cat) = 0.07/0.35 = 7/35
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Cheers,
Stan H.
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a)7/35
b)23/35
c)7/23
d) 23/100 
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