A guidance counselor at a middle school collected the following
A guidance counselor at a middle school collected the following information regarding the employment status of married couples within his school’s boundaries.
(a) What is the probability that, for a married couple selected at random, both spouses work?
(b) What is the probability that, for a married couple selected at random, the couple has one child under the age of 18?
(c) What is the probability that, for a married couple selected at random, the couple has two or more children under the age of 18 and both spouses work?
(d) What is the probability that, for a married couple selected at random, the couple has no children or only the husband works?
(e) Would it be unusual to select a married couple at random for which only the wife works?
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