For items 11-21, please refer to the table below.
Lower
Less than
CLASS
Frequency
Boundary
Cumulative
94-98
8
93.5
55
89-93
13
88.5
47
84-88
26
83.5
34
79-83
7
78.5
8
74-78
1
73.5
1
n = 55
11. What is the size of the class interval?
a. 3
b. 4
C. S
d 6​