A guidance counselor at a middle school collected the following information regarding the employment status of married
Question:
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(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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a Of the 1700 married couples within the school boundaries 1149 had both spouses working Therefore Pboth work 11491700 0676 b Of the 1700 married couples within the school boundaries 353 had 1 child under the age of 18 Therefore P1 child under 18 yrs 3531700 0208 c Of the 1700 married couples within the school boundaries 370 had two or more children under the age of 18 and both spouses worked Therefore Pboth work and 2 or more children under 18 3701700 37170 0218 d Of the 1700 married couples within the school boundaries 425 had only the husband working 788 had no children under the age of 18 and 172 had only the husband working and no children under the age of 18 Therefore Phusband only or no children 18 yrs Phusband only or no children 18 yrs Phusband only Pno children Phusband only and no children 4251700 7881700 1721700 10411700 0612 e Of the 1700 married couples within the school boundaries 126 had only the wife working Therefore P ...View the full answer
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