Monday
October 20, 2014

Homework Help: math

Posted by sabir on Sunday, February 17, 2013 at 11:41am.

In a group of 100 people 40 own a cat, 25 own a dog and 15 own a cat and a dog.
Find the probability that a person selected at random from the group:
a) owns a dog or a cat.
b) owns a dog or a cat, but not both
c) owns a dog, given that he owns a cat
d) does not own a cat, given that he owns a dog.

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