1.Visualizing Time and Performance Cohorts
Scatter plot and bar chart · 2026
An academic performance analyst used a dashboard to bypass manual workflows by automatically visualizing student cohort correlations from raw CSV data. The summary panel highlights that the highest average final grade (11.4) occurs in the 5-10 hrs/week study band, while the largest cohort (198 students) studies 2-5 hrs/week. A scatter plot tracks absences against the final grade (G3), with a red dashed line marking the pass threshold at 10 and bubble sizes representing second-period grades (G2). A final grade distribution bar chart shows peaks at 10 (56 students) and 11 (47 students).
What it shows:
How cohort analysis of time bands can reveal optimal performance ranges.




