Question

The first quartile of a frequency distribution of 200 observations
is 12.5. Find the missing frequencies.
Class
0-4 5-9 10-14 15-19 20-24 25-29 30-34
15 20 ?
Frequency
30
70
25 ?
TAns. : 25, 151​

Answer 1

I think your question is wrong or incomplete.

Plz send your question picture.

Sorry for spam but it is your fault