Student Allocation Question

Suppose a student has 9 hours available to study Economics, Spanish and Psychology with an estimate of performance based on hours of study for upcoming exams.

Hours                  Economics         Spanish               Psychology

0                           20                        30                        35

1                           39                        51                        53

2                           56                        65                        69

3                           71                        77                        79

4                           82                        86                        87

5                           86                        91                        92

6                           88                        95                        95

7                           89                        97                        97        

8                           90                        98                        98

9                           91                        99                        99          

Graph the gain in scores for studying first, second, third…., ninth hour for studying a) Economics b) Spanish c) Psychology on THREE SEPARATE GRAPHS. How would you describe the graphs you   drew? What can you say about the gains of studying more and more hours of , e.g. Economics?