more than ogive graph marks 10-20 20-30 30 -40 40-50 50- 60. 60 -70 number of students 10,15,30,32,8,5
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more than ogive graph marks 10-20 20-30 30 -40 40-50 50- 60. 60 -70 number of students 10,15,30,32,8,5
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