Data on the amount of time spent studying for a particular exam at a high school were collected for 150 students. You want to know half of the students spent at least how much time studying for that exam. Which of the following would you compute?
A) coefficient of variation
B) arithmetic mean
C) covariance
D) median

Question

Quizplus · Accepted Answer

The median is the value that separates the upper and lower halves of a dataset, so computing the median would give us the amount of time that half of the students spent studying or more. This is the best choice for determining what amount of time at least 50% of the students studied for the exam.

Data on the Amount of Time Spent Studying for a Particular