70 % of your friends have pets. Of those with pets , 25 % have cats, 45 % dogs, and the rest have fish. THe probability that one of your friends has a dog and a sibling is 14 %. The probability that s/he does not have a sibling but has a cat is 11%. The probability of your friend having a sibling given s/he does not have a pet is 60 %. 50 % of your friends with fish have siblings. You choose a friend at random. What is the probability that s/he has a dog or a cat given that s/he has a silbling?
This question really confuses me. but i made a tree diagram to start it.
This question really confuses me. but i made a tree diagram to start it.