The following data represent the tuition for all 2-year public community colleges in California in 20092010. Tuition

Question:

The following data represent the tuition for all 2-year public community colleges in California in 2009–2010.
Tuition (dollars) ... Number of
Community Colleges
775–799 ....... 22
800–824 ....... 68
825–849 ....... 15
850–874 ....... 5
875–899 ....... 0
900–924 ....... 0
925–949 ....... 0
950–974 ....... 1
Find
(a) The number of classes,
(b) The class limits, and
(c) The class width.