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?