Question

find the mean marks from the following data
marks number of students
below 10 5
below 20 9
below 30 17
below 40 29
below 50 45
below 60 60
below 70 70
below 80 78
below 90 83
below 100 85

Answer 1

Answer:

Mean is 48.8

Step-by-step explanation:

I would like to do these types of sums...

you can follow me... pls follow me...