15. What is the width of each bin? (1 point)
A.10
B.1
C.5
D.The width varies.
16. Which class has the highest frequency? (1 point)
A.80
B.80–89
C.90
D.The answer cannot be determined.
17. What is the cumulative frequency of the green bar? (1 point)
A.0.15
B.15
C.25
D.22