Student Study Habits, Absences & Grade Outcomes
Interactive view of study time, attendance, and grade progression across the mathematics dataset
Students in view
395
Full dataset
Portuguese student records from the mathematics dataset.
Average final grade
10.4/20
67.1% pass rate
Students with G3 ≥ 10 are counted as passing.
Average absences
5.7
30 high-risk cases
More than 10 absences and G3 below 10.
Strongest relationship
r = 0.905
G2 ↔ G3
Earlier grades track final outcomes more closely than attendance or study time.
Performance snapshot
This dashboard focuses on how study time, absences, and final grade (G3) interact across the full student-mat dataset. The strongest signal is grade continuity: G2 has a very strong positive relationship with G3, while study time is positive but much weaker overall.
The highest average final grade appears in the 5-10 hrs/week band at 11.4, while the largest group is 2-5 hrs/week with 198 students.
•<2 hrs/week · 105 students•2-5 hrs/week · 198 students•5-10 hrs/week · 65 students•10+ hrs/week · 27 students
What to look for
- Scatter plot: check whether higher absence counts cluster around lower final grades, and how study-time groups separate.
- Distribution views: see whether final grades are concentrated around pass/fail boundaries or spread across the scale.
- Progression charts: compare how G1, G2, and G3 evolve for each study-time band rather than looking at a single score in isolation.
- Heatmap: identify combinations of study time and attendance bands associated with higher or lower average G3.
Absences vs. final grade, colored by study time
Bubble size reflects second-period grade (G2), helping show how attendance, current performance, and final outcomes overlap.
Final grade distribution
A frequency view of G3 shows how many students end up near failing, passing, and higher-performance ranges.
Final grade spread by study-time band
Box plots highlight the median, spread, and outliers for G3 within each study-time category.
Average G1, G2, and G3 by study time
Grouped bars make it easier to compare assessment-stage averages across study habits.
Grade progression across periods for each study-time group
Following each study band across G1, G2, and G3 helps show whether early advantages persist into the final result.
Average final grade by study time and absence bucket
The heatmap combines attendance and study behavior to reveal where higher average G3 values concentrate.
Students with the highest absence counts
| Sex | Age | Study time | Absences | G1 | G2 | G3 |
|---|---|---|---|---|---|---|
| F | 18 | 2-5 hrs/week | 75 | 10 | 9 | 9 |
| F | 17 | 2-5 hrs/week | 56 | 9 | 9 | 8 |
| F | 16 | 2-5 hrs/week | 54 | 11 | 12 | 11 |
| F | 19 | 5-10 hrs/week | 40 | 13 | 11 | 11 |
| M | 19 | <2 hrs/week | 38 | 8 | 9 | 8 |
| M | 17 | <2 hrs/week | 30 | 8 | 8 | 8 |
| F | 17 | 5-10 hrs/week | 28 | 10 | 9 | 9 |
| F | 15 | 2-5 hrs/week | 26 | 7 | 6 | 6 |