The following distribution gives the daily income of $50$ workers of a factory.
Daily income (in Rupees)
$250 - 300$ $300 - 350$ $350 - 400$ $400 - 450$ $450 - 500$
Number of workers $12$ $14$ $8$ $6$ $10$
Convert the above distribution to a less than type cumulative frequency distribution and draw its ogive.

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Solution

Daily income

Number of workers

Daily wages (x-axis)

Cumulative frequency
(y-axis)

250-300

12

<300

12

300-350

14

<350

12+14=26

350-400

8

<400

26+8=34

400-450

6

<450

34+6=40

450-500

10

<500

40+10=50

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Daily income(in ₹):	200 – 220	220 – 240	240 – 260	260 – 280	280 – 300
Number of workers:	12	14	8	6	10

50

Daily wages in Rupees	$200 - 250$	$250 - 300$	$300 - 350$	$350 - 400$	$400 - 450$
Number of workers	$6$	$8$	$14$	$10$	$12$

Daily income (in Rupees)	$250 - 300$	$300 - 350$	$350 - 400$	$400 - 450$	$450 - 500$
Number of workers	$12$	$14$	$8$	$6$	$10$