Answer:
The cumulative frequency distribution is
Class Cumulative
Interval frequency
35-39 11
40-44 33
45-49 77
50-54 90
55-59 156
60-64 244
65-69 255
Step-by-step explanation:
Class
Interval F C.F
35-39 11 11
40-44 22 11+22=33
45-49 44 33+44=77
50-54 13 77+13=90
55-59 66 90+66=156
60-64 88 156+88=244
65-69 11 244+11=255
The first column contains class interval. The second column denoted by F contains frequencies. The third column contains cumulative frequencies denoted as C.F.
