The following table gives production yield per hectare of wheat of 100 farms of a village.
Production Yield 50-55 55-60 60-65 65-70 70-75 75-80
Number of Farms 2 8 12 24 38 16
Change the distribution to a more than type distribution and draw its ogive.

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Detailed Solution

Converting the given distribution to a more than type distribution, we get

Production Yield (kg/ha)	Number of farms
More than or equal to 50	100
More than or equal to 55	100-2 = 98
More than or equal to 60	98-8= 90
More than or equal to 65	90-12=78
More than or equal to 70	78-24=54
More than or equal to 75	54-38 =16

From the table obtained draw the ogive by plotting the corresponding points where the upper limits in x-axis and the frequencies obtained in the y-axis are (50, 100), (55, 98), (60, 90), (65, 78), (70, 54) and (75, 16) on

this graph paper. The graph obtained is known as more than type ogive curve.

Ncert solutions class 10 chapter 14-12