Question

1A Class teacher has the following attendance record of to
students of a class for the whole team. find the mean
rumber of days a student was present out of 56 days in
the term by step-deviation method?
No of days / 35-38 38-41 41-44 44-47 47-50 50-53 53-55
4
No of Students
!
4
(o
7
3
4​

Answer 1

Answer:

1234567890987654321234567890