Question

The following are the marks obtained by $42$ students in an English examination(out of $50$ marks). Draw a histogram and frequency polygon for the data.
$29,45,23,40,31,11,48,1,30,24,25,29,25,32,31,22,9,49,19,13,32,39,25,3,27,41,$

$12,13,2,44,7,43,7,43,15,35,40,3,12,48,49,18$.

Answer 1

From the given information we are going to form a frequency table :

$Marks$	$Class-mark$	$No.ofstudents$
$0-10$	$5$	$7$
$10-20$	$15$	$8$
$20-30$	$25$	$9$
$30-40$	$35$	$7$
$40-50$	$45$	$11$