Statistics

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Each page provides a snapshot of some statistics for each of the groups of units. These statistics are explained below:

• Participants: The number of students, over all years, who have this unit on their dashboard.
• Submissions: The number of students, over all years, who have submitted this unit.
• ♣ earned: In general, problems in each unit can be worth 2, 3, 5, or 9 clubs. Students complete each unit by passing a certain threshold. This statistic counts the total number of clubs earned over all submissions.
• ❤ earned: Students can self-report approximately how many hours they spent on each unit. This statistic sums the total number of hours spent over all submissions. (Obviously, since this is a self-reported statistic, it's meant to just be a ballpark reference point.)

All of these are counted with multiplicity over all versions of the unit.

The statistics are updated periodically. You can check