It takes 7 students 38 minutes to complete a test, 3 students 36 minutes, 1 student 34 munutes, 6 students 42 minutes, and 10 students 30 minutes. What is the probability that one.student will complete the test in 30 minutes?
The logic of this question escapes me.
Why would the time taken to complete a test depend on the
number of students taking it ?