The following observations are for two quantitative variables, x and y.

a. Develop a cross tabulation for the data, with x as the row variable and y as the column variable. For x use classes of 10-29, 30-49, and so on; for y use classes of 40-59, 60-79, and so on.
b. Compute the row percentages.
c. Compute the column percentages.
d. What is the relationship, if any, between x and y?

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