timestamp,student_id,activity_type,score,duration_minutes
2024-01-15 09:00:00,1001,login,,5
2024-01-15 10:30:00,1001,lecture_view,,45
2024-01-15 14:00:00,1001,quiz_attempt,85,30
2024-01-16 09:15:00,1002,login,,3
2024-01-16 11:00:00,1002,forum_post,,20
2024-01-17 13:30:00,1001,assignment_submit,92,60
2024-01-18 10:00:00,1002,lecture_view,,50
2024-01-18 15:00:00,1002,quiz_attempt,78,25
2024-01-19 09:30:00,1003,login,,4
2024-01-19 11:00:00,1003,lecture_view,,40
2024-01-19 14:30:00,1003,quiz_attempt,88,35
2024-01-20 10:00:00,1001,forum_post,,15
2024-01-20 13:00:00,1002,assignment_submit,95,70
2024-01-21 09:00:00,1003,assignment_submit,90,65
2024-01-21 11:30:00,1001,lecture_view,,55
2024-01-21 15:00:00,1002,quiz_attempt,82,28