Ms. Willems surveyed her students about how long they studied for their last exam. The histogram shows her results. A histogram titled study times has time (hours) on the x-axis and relative frequency on the y-axis. 0 to 2, 8 percent; 2 to 4, 12 percent; 4 to 6, 29 percent; 6 to 8, 40 percent; 8 to 10, 10 percent.

Which is the best description of the data in the histogram?

Students mostly studied about 6 hours.
Students who studied longer did better on the test.
Students’ study times did not vary by much.
The majority of students studied between 4 and 8 hours.