The data in the spreadsheet show observations for two quantitative variables, x and y.

Develop a crosstabulation 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 20–39, 40–59, and so on.

Compute the row percentages.

What is the relationship, if any, between x and y?

Observation	x	y
1	28	72
2	17	99
3	52	58
4	79	34
5	37	60
6	71	22
7	37	77
8	27	85
9	64	45
10	53	47
11	13	98
12	84	21
13	59	32
14	17	81
15	70	34
16	47	64
17	35	68
18	62	67
19	30	39
20	43	28