In: Statistics and Probability
A college student has just completed her junior year. The following table summarizes her grade-point average (GPA) for each of the past nine quarters:
| 
 Year  | 
 Semester  | 
 GPA  | 
| 
 Freshman  | 
 Fall  | 
 2.4  | 
| 
 Winter  | 
 2.9  | 
|
| 
 Spring  | 
 3.1  | 
|
| 
 Sophomore  | 
 Fall  | 
 2.5  | 
| 
 Winter  | 
 3.0  | 
|
| 
 Spring  | 
 3.2  | 
|
| 
 Junior  | 
 Fall  | 
 2.6  | 
| 
 Winter  | 
 3.1  | 
|
| 
 Spring  | 
 3.5  |