A researcher is trying to determine whether there is a link between daily exercise time and test performance among high school students. The researcher randomly selects 80 students from the entire student population of a particular high school. The following table presents the data for the 50 students who exercised at least 10 minutes daily.
| Exercise time per day | Score below 75 | Score 75 or above | Total |
|---|---|---|---|
| 10 to 20 minutes | 9 | 8 | 17 |
| More than 20 minutes | 7 | 26 | 33 |
| Total | 16 | 34 | 50 |
To which group can the conclusions of this study be appropriately generalized?
The 50 students who exercised at least 10 minutes daily
The 80 students who participated in the study
All students at the high school
All students with a score of 75 or above
