Question

Frequency
Cumulative Frequency
(cf)
Lower Boundaries
(LB)
Class Interval of the
Allowance
4
22 - 24
12
19-21
15
16 - 18
7
13 - 15
4
10 - 12
3
7 - 9​

Answer 1

Answer:

cf=2 gap

ans. 16.733

I hope my answer like it