Listed are the number of hours a game designer spent coding different games: 17, 21, 31, 25, 18, 28, 30, 14, 34, 11, 19, 23, 26
21, 20, 15, and 13. Use the data to complete the frequency distribution table for the class mark (or class midpoint).
Classes
Class Mark/Midpoint
(a)
10-14
15-19
20-24
(b)
(c)
(d)