Finite probability question! Help?

Posted on 2014-11-15 08:00:00 in Math by MA

Assume that the car lot contains 25 percent BMWs, 25 percent Lincolns, and 50 percent Porches. Of the BMWs, 20 percent have two airbags, 10 percent of the Lincolns have two airbags, and 90 percent of the Porches have two airbags. Furthermore, 90 percent of the BMWs, 70 percent of the Lincolns, and 60 percent of the Porches are white. The property of being white is independent from having two airbags. You are assigned a car at random.

(1) If the car has two airbags and is white, what is the probability that it is a BMW?

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