Answer
(a) 8 classes.
(b) Class 1:
lower class limit = 775
upper class limit = 799
Class 2:
lower class limit = 800
upper class limit = 824
Class 3:
lower class limit = 825
upper class limit = 849
Class 4:
lower class limit = 850
upper class limit = 874
Class 5:
lower class limit = 875
upper class limit = 899
Class 6:
lower class limit = 900
upper class limit = 924
Class 7:
lower class limit = 925
upper class limit = 949
Class 8:
lower class limit = 950
upper class limit = 974
(c) Class width = 25
Work Step by Step
(a) Just count the number of classes: 8
(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: $ 800-775=825-800=850-825=875-850=900-875=925-900=950-925=25$
