For Exercise 1.15, see page 9; for 1.16 and 1.17, see page 10, for 1.18 and 1.19, see pages 11-12; for 1.20 and 1.21, see page 15; for 1.22 and 1.23, see page 19; and for 1.24, see page 20.
1.21 Suppose some students scored 100.
No students earned a perfect score of 100 on the exam described in the previous exercise. Note that the last class included only scores that were greater than or equal to 90 and less than 100. Explain how you would change the class definitions for a similar exam on which some students earned a perfect score.
1.21
One solution is to have the highest range include 100, so 90 < score = 100, 80 < score = 90, etc.