2. In some country 25% of the people have parents who are divorced. Suppose that there is a probability of 0.30 that a person will be divorced if his/her parents were divorced and a probability of 0.20 if they were not. If a person is divorced, what is the probability that his or her parents were also divorced?

Q: What is the triangle inequality? How is it proved? Why is the inequality |a+b| |a|+|b|, where a and…

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