The following table draws the income of finance of a grape season find the mean of their income.
Income (thousand Rs) $20 - 30$ $30 - 40$ $40 - 50$ $50 - 60$
Farmer $10$ $11$ $15$ $16$

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Solution

Mean of income $= \frac{10 + 11 + 15 + 16}{4} = \frac{52}{4} = 13$

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Similar questions

Income (Thousand Rupees)	20 - 30	30 - 40	40 - 50	50 - 60	60 - 70	70 - 80
Farmers	10	11	15	16	18	14

100

Age (in years)	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$
Number of persons	$5$	$15$	$20$	$23$	$17$	$11$	$9$

Draw the less than ogive and find the median.

Income/day (Rs)	70-74	74-78	78-82	82-86	86-90
No. of people	8	10	11	17	4

Marks	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$
No. of students	$5$	$10$	$25$	$30$	$20$	$10$

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Income (thousand Rs)	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$
Farmer	$10$	$11$	$15$	$16$