[{"student_id": 1001, "gpa": 3.45, "attendance": 92, "status": "Active"}, {"student_id": 1002, "gpa": 4.5, "attendance": 85, "status": "Active"}, {"student_id": 1003, "gpa": 2.8, "attendance": 110, "status": "Active"}, {"student_id": 1004, "gpa": null, "attendance": 60, "status": "Inactive"}, {"student_id": 1005, "gpa": 2.1, "attendance": -5, "status": "At Risk"}]