14.30 Guess the correlation. For each of the following pairs of variables, would you expect a substantial negative correlation, a substantial positive correlation, or a small correlation?
(a) the cost of a cable TV service and the number of channels provided by the service
(b) the weight of a road-racing bicycle and the cost of the bicycle
(c) the number of hours a student spends on Facebook and the student’s GPA
(d) the heights and salaries of faculty members at your university
| Team | Hot dog | Beer | Team | Hot dog | Beer | Team | Hot dog | Beer |
|---|---|---|---|---|---|---|---|---|
| Angels | 4.50 | 0.28 | Giants | 5.50 | 0.50 | Rays | 5.00 | 0.42 |
| Astros | 4.75 | 0.36 | Indians | 3.00 | 0.33 | Reds | 1.00 | 0.44 |
| Blue Jays | 4.98 | 0.49 | Marlins | 6.00 | 0.50 | Red Sox | 5.25 | 0.65 |
| Braves | 4.75 | 0.45 | Mets | 6.25 | 0.48 | Rockies | 4.75 | 0.38 |
| Brewers | 3.50 | 0.38 | Padres | 4.00 | 0.36 | Royals | 5.00 | 0.41 |
| Cardinals | 4.25 | 0.42 | Phillies | 3.75 | 0.37 | Tigers | 4.50 | 0.42 |
| Diamondbacks | 2.75 | 0.29 | Pirates | 3.25 | 0.34 | Twins | 4.50 | 0.38 |
| Dodgers | 5.50 | 0.31 | Rangers | 5.00 | 0.31 | White Sox | 4.00 | 0.41 |