Mode of the data 15, 14, 19, 20, 14, 15, 19, 14, 15, 20, 14, 19, 15, 15, 17 is
19
14
15
18
Arranging the given data in a frequency distribution: x1415171920f45132 x = 15 has the highest frequency, f = 5. Hence the mode is 15.