Question

construct a L.C.F and G.C.F. curve for the following data.

Marks obtained	0-5	5-10	10-15	15-20	20-25
No. of students	10	3	5	2	2

Answer 1

We are going to form more than frequency table :

$Marksobtained$	$No.ofstudents$ $(G.C.F.)$
More than $0$	$22$
More than $5$	$12$
More than $10$	$9$
More than $15$	$4$
More than $20$	$2$

We are going to form more than frequency table :

$Marksobtained$	$No.ofstudents$ $(L.C.F)$
Less than $5$	$10$
Less than $10$	$13$
Less than $15$	$18$
Less than $20$	$20$
Less than $25$	$22$