Question

For the following incomplete distribution of marks of 100 pupils, median mark is known
to be 12
Morks
No. of Students
10 20
20-30
30-40
0-10
10
40-50
50-60
10
30
What is the mean mark?
(b) 31
(e) 31.30
(d) 31.50

Answer 1

Answer:

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