Professor White asked his students to put the number of hours each studied for the final exam on a piece of paper and turn that paper in with the exam. The pieces of paper indicate that students studied 10, 3, 4, 25, 1, 4, 4, 12, 6, 8, and 10 hours.What is the mean number of hours studied?

Question

Quizplus · Accepted Answer

To find the mean, you need to add up all the hours studied and then divide by the total number of students. 
The sum of the hours studied is: 10+3+4+25+1+4+4+12+6+8+10 = 87
There are 11 students, so the mean is 87/11 = 7.9. Therefore, the best choice is B, with a mean of 7.9.

Professor White Asked His Students to Put the Number of Hours