What percent of students are late to class because dropping books?

There's no reliable data on what percentage of student lateness is specifically caused by dropping books. This is because:

* No central tracking: Schools don't typically track lateness reasons with that level of detail.

* Infrequent event: Dropping books and consequently being late is probably a relatively rare occurrence for most students.

* Subjective reporting: Even if schools *did* track reasons for lateness, accurately attributing lateness solely to dropping books would be difficult. Many factors can contribute to a student's tardiness.

In short, it's impossible to give a percentage answer to this question.