Consider the following frequency table of the performance ratings on a scale of 1-good, 2-fair, and 3-poor, bestowed on their local baseball team by a collection of 100 fans:
Rating Frequency
1 20
2 30
3 50
The cumulative relative frequencies for each performance rating are
a. 1-20%, 2-30%, 3-50%
b. 1-20%, 2-50%, 3-100%
c. 1-80%, 2-70%, 3-50%
d. 1-50%, 2-30%, 3-20%