Answer
(a) 6 classes.
(b) Class 1:
lower class limit = 0
upper class limit = 4,999
Class 2:
lower class limit = 5,000
upper class limit = 9,999
Class 3:
lower class limit = 10,000
upper class limit = 14,999
Class 4:
lower class limit = 15,000
upper class limit = 19,999
Class 5:
lower class limit = 20,000
upper class limit = 24,999
Class 6:
lower class limit = 25,000
upper class limit = 29,999
(c) Class width = 5,000
Work Step by Step
(a) Just count the number of classes: 6
(b) For each class, the first number is the lower limit and the second number is the upper limit.
(c) It is the difference between two consecutive lower limits: $5,000-0=10,000-5,000=15,000-10,000=20,000-15,000=25,000-20,000=5,000$
