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 at least how much time half of the students spent studying for that exam. Which of the following would you compute?
A) Arithmetic mean
B) Median
C) Coefficient of variation
D) Coefficient of correlation

Question

Quizplus · Accepted Answer

The median would be the best choice because it represents the middle value of the data and separates the lower and upper halves. In this case, we want to know at least how much time half of the students spent studying, which is exactly what the median provides. The arithmetic mean would not necessarily represent the middle value and can be skewed by extreme values, while the coefficient of variation and coefficient of correlation are measures of variability and association between variables, respectively, and are not relevant for this particular question.

Data on the Amount of Time Spent Studying for a Particular