Question

tell me the correct answer from the above problem

Answer 1

is it ogive graph then

marks fi cf

0-10 3 3

10-20 7 3+7=10

20-30 10 10+10=20

30-40 8 20+8=28

40-50 2 28+2 =30

€f = 30

now plot the answer

(10,3) , (20,10),(30,20),(40,28),(50,30)

now put the in the graph

it is less than ogive