Question

Tally Marks
No. of students
Marks in class interval
40-50
50-60
60_70
70-80
80-90
(i) What is the upper limit of 40–50?
(ii) What is the upper limit of 70-80?
(iii) What is the class size?​

Answer 1

Answer:

uper limit

40-50=50-60

upper limit 70-80=80-90

class size 60-70 ans