Question

The daily wages in a factory are distributed as follows $:$

Daily wages (in Rs.)	$12.5-17.5$	$17.5-22.5$	$22.5-27.5$	$27.5-32.5$	$32.5-37.5$
Number of workers	$4$	$20$	$22$	$10$	$6$

Draw a frequency polygon for this distribution .

Answer 1

Daily wages	No.of workers	Mid point of class
$12.5-17.5$	$4$	$15.5$
$17.5-22.5$	$20$	$20.5$
$22.5-22.5$	$22$	$25.5$
$27.5-32.5$	$10$	$30.5$
$32.5-37.5$	$6$	$35.5$