Given any two variables, such as Walking and Weight for example, we can collect paired data for each. An example might be:

WALKING (hrs/wk)

Weight (y)

0

300

0.5

276

2

258

4

230

6

200

10

185

12

150

r value

-0.9760

We can describe the relationship between any two variables as strong, medium, weak, as well as positive or negative (inverse). In this example above, the relationship is strong and negative (inverse) - why is this? What would the scatterplot look like?