Suggestions for the statistics view

[nthiery]

The statistics view is really cool and useful. Here are some suggestions to improve it even further:

• [ ] Display quartiles on the left bar
• [ ] Display a histogram, say with 10 or 20 buckets
• [ ] When a question is selected, display the statistics on that question
• [ ] Allow to select several questions (e.g. with shift-click); in that case display statistics and grades accumulated over the selected questions. Maybe display the radar view restricted on these questions?
• [ ] On my display, there is some blank around the radar; maybe its size could be increased a bit to fil the center view.
• [x] The fonts for the statistics are quite big, and the left bar is relatively narrow; meaning more line breaks and less info visible at once.
• [ ] Make it possible to grant students a view on the global and per question statistics.