Main activity Consider the following list of variables and graphs:

a. scores on a fairly easy examination in statistics;

b. number of menstrual cycles required to achieve pregnancy for a sample of women who attempted to get pregnant. Note that these data were self,reported from memory. (Data from S. Harlap and H. Baras (1984), "Conception-waits in fertile women after stopping oral contraceptives," Int.]. Fertility, 29:73-80.)

c. heights of a group of college students;

d. numbers of medals won by medal~winning countries in the 1992 Winter Olympics;

e. SAT scores for a group of college students.

Use your knowledge of the variables (i.e., ask yourself if the distribution is likely to be symmetric or skewed, etc.) to match the variables with the graphs.