Question

answer it iam waiting

Answer 1

Hloo dear the answer is in the above pic.
IF U FIND IT HELPFUL MARK IT AS BRAINLIEST ANSWER :)
scale:
on x-axis 1cm=100 ms
on y-axis 1 cm= 10 ms

Answer 2

Hopefully this is what you're looking for

The values in the X axis are:
1=60-70
2=70-80
3=80-90
4=90-100
5=100-110
6=110-120
7=120-130
And those are the IQs

And in the Y-axis are the number of students