SOLUTION: Hello, I'm having a little trouble with this problem and I was wondering if someone could help me?? Here is the problem and answer choices below: 13) I n one town, 35% of ho

Algebra ->  Probability-and-statistics -> SOLUTION: Hello, I'm having a little trouble with this problem and I was wondering if someone could help me?? Here is the problem and answer choices below: 13) I n one town, 35% of ho      Log On


   



Question 416434: Hello,
I'm having a little trouble with this problem and I was wondering if someone could help me??
Here is the problem and answer choices below:
13) I n 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?
a)7/35
b)23/35
c)7/23
d) 23/100
thanks!!

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
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