# Question

A total of 500 married working couples were polled about their annual salaries, with the following information resulting:

For instance, in 36 of the couples, the wife earned more and the husband earned less than $25,000. If one of the couples is randomly chosen, what is

(a) The probability that the husband earns less than $25,000?

(b) The conditional probability that the wife earns more than $25,000 given that the husband earns more than this amount?

(c) The conditional probability that the wife earns more than $25,000 given that the husband earns less than this amount?

For instance, in 36 of the couples, the wife earned more and the husband earned less than $25,000. If one of the couples is randomly chosen, what is

(a) The probability that the husband earns less than $25,000?

(b) The conditional probability that the wife earns more than $25,000 given that the husband earns more than this amount?

(c) The conditional probability that the wife earns more than $25,000 given that the husband earns less than this amount?

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