10.2 The temperature, in degrees Celsius, each day over a three-week period was(5 Points) recorded as follows: 17, 18, 20, 22, 21, 19, 16, 15, 18, 20, 21, 21, 22,

21, 19, 20, 19, 17, 16, 16, 17 (a) Compute the mean, median, and mode. (b) Using two-degree intervals starting with 15-16, draw a frequency diagram.