Question

Draw an O-give for the following frequency distribution by less than method and also find its median from the graph

marks	0 - 10	10 - 20	20 - 30	30 - 40	40 - 50	50 - 60
Number of students	7	10	23	51	6	3

• A. $36$ marks
• B. $35$ marks
• C. $34$ marks
• D. $33$ marks

Answer 1

The correct option is C $34$ marks

Converting the frequency distribution into less than cumulative frequency distribution

Marks	No.of Students
less than $10$	$7$
less than $20$	$17$
less than $30$	$40$
less than $40$	$91$
less than $50$	$97$
less than $60$	$100$

According to graph, median $=34$ marks.