Question

The following table gives the yield per hectare of wheat of 100 farms of a village:

Yield in kg/hectare	50-55	55-60	60-65	65-70	70-75	75-80
Number of farms	2	8	12	24	38	16

Change the above distribution to 'more than type' distribution and draw its ogive.

Answer 1

We may prepare the more the series as shown below.

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 o-give can be obtained as follows: