A researcher conducts a study on the average time students spend studying for a math test. After surveying 50 students, she records the following times (in hours):
1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 14, 14, 15, 15, 15, 16, 17, 18, 19, 20, 25
Based on this data set, what is the median time (in hours) that students spent studying?