Attempt this question on a graph paper.
Marks 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50 50 – 60 60 – 70 70 – 80 80 – 90 90 – 100
No. of students 5 10 14 21 25 34 36 27 16 12
Draw an ogive for the given distribution taking 2cm = Rs.10 marks on one axis & 2cm = 5 students on the other axis. Using the graph determine:
71.5, 70, 92.5