Question

A class teacher has the following attendance record of 40 students of a class for the
whole term. Find the mean number of days a student was present out of 56 days in the
tenn. in step deviation Method
the f
oda
Number of days
35-38
38-41
41,4444-47
47-50
50-53
53-56
Mumber of students
1
3
4
4
7
10
11​

Answer 1

Answer:

40 student are so less to indian school cause they are so