Each respondent in the Current Population Survey of March 2005 can be classified by age and marital status. The table below shows results for women age 20-29 in Montana. Question A. Women of different ages seem to have different distributions of marital status. Or just chance variation? Question B. If the difference is real, what accounts for it? (a) Can you answer these questions with the information given? If so, answer them. If not, why not? (b) Can you answer these questions if the data in the table resulted from a simple random sample of women age 20-29 in Montana? If so, answer them, If not, why not?

Table AGE 20-24 25-29 Never married 46 21 Married 17 32 Widowed, divorced, separated 1 6