Question

4 Find f and
F
Cof
,
No. of students (Prequency)
Marks
F
15
50
F
20-30
30-60
60-90
90-120
22
60
NEF=6
N=60​

Answer 1

1. 10
2. 30
3. 60
4. 90
5. mark as brainliest