Question

The following table gives production yield per hectare of wheat of 100 farms of a village.

Production yield (in kg/ha)	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 ogive.

Answer 1

The cumulative frequency distribution of more than type can be obtained as follows.

Production yield (lower class limits)	Cumulative frequency
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

Taking the lower class limits on x-axis and their respective cumulative frequencies on y-axis, its ogive can be obtained as follows.