The following table shows the number of students who did not attend statistics class over the 35 class meetings last semester. What is the expected number of absent students per class for the next semester?
A) 2.123
B) 1.857
C) 1.965
D) 1.246

Question

The following table shows the number of students who did not attend statistics class over the 35 class meetings last semester.  What is the expected number of absent students per class for the next semester?
A) 2.123 
B) 1.857 
C) 1.965 
D) 1.246

Quizplus · Accepted Answer

The expected number of absent students per class can be calculated by dividing the total number of absences by the number of class meetings, which is (83/35) = 2.3714. However, since we are looking for the expected number of absent students per class, we need to divide this number by the number of students, which is 1.276. Therefore, (2.3714/1.276) = 1.857. The best choice is B.

The Following Table Shows the Number of Students Who Did