On a day a big homework assignment is due, a student is witnessed outside class with 40% of class time remaining. Instead of going in, the student waits outside the closed door until class is over and then turns in the homework.
Normally it does not matter if homework is turned in at the beginning or end of class, but this time the instructor went over the solutions in class. The white board is not visible from the door window, and the solutions are graphical, showing the growth of B-trees.
A classmate sees the student out there and sees him turn it in afterwards and accuses him of listening through the wall and writing down the solutions the instructor verbally explained.
The student got a perfect score on the homework and a 90% on the exam but typically does not come to class except to turn in homework.
How likely do you think it is the student was cheating?
Normally it does not matter if homework is turned in at the beginning or end of class, but this time the instructor went over the solutions in class. The white board is not visible from the door window, and the solutions are graphical, showing the growth of B-trees.
A classmate sees the student out there and sees him turn it in afterwards and accuses him of listening through the wall and writing down the solutions the instructor verbally explained.
The student got a perfect score on the homework and a 90% on the exam but typically does not come to class except to turn in homework.
How likely do you think it is the student was cheating?
What is the probability this student was cheating?