what is approximately the percentage of blue cars stolen?

Dewey Heersink: We know the conditional probability, if it is red the probability it is stolen:P(S|R) =.20We need to find P(S|B)We also have been given:As for all conditional probabilitiesP(S|R) = P(S∩R)/P(R) = .1 So P(S∩R) = .1*P(R)We could finish the problem if we were give the ratio of P(R) to P(B) but we were not instead we have."There are twice as many blue cars as red cars stolen." which is conditional probability as well. Given it was stolen there is twice the probability it is blue than red.P(B|S) = 2 P(R|S)...Show more

Verdie Wollen: if it is twice as many as the red cars stolen then all you do is multiply your current red car percentage by 2 that will give you 20% of blue cars stolen.

Donnell Mollo: It depends on how many blue cars there are. Assuming there are the same amount of blue cars as there are red cars, 20% are stolen.