* The student's schedule: Some students might have only one class a day, while others might have several. This depends on their course load, class times, and whether they're full-time or part-time.
* The course format: Some classes meet once a week, others twice, and some might even be spread across multiple days. Online classes don't have a fixed "per day" schedule.
* The college/university: Different institutions have different scheduling systems.
A full-time student might typically take 4-5 classes *per week*, but these could be spread out across the week, meaning they might not have classes every day, or might have multiple classes on some days and none on others. A part-time student might have only one or two classes per day, or even fewer.