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The following table gives production yield per hectare of wheat of 100 farms of a village:
Production yield in kg per hectare: | 50-55 | 55-60 | 60-65 | 65-70 | 70-75 | 75-80 |
Number of farms: | 2 | 8 | 12 | 24 | 38 | 16 |
Given:
The given table gives production yield per hectare of wheat of 100 farms of a village.
To do:
We have to draw 'less than' ogive and 'more than' ogive.
Solution:
We first prepare the cumulative frequency distribution table by less than method as given below:
Represent Upper class limits along X-axis and cumulative frequency along Y-axis.
Plot the points (55, 2), (60, 10), (65, 22), (70, 46), (75, 84) and (80, 100) on the graph and join them in free hand to get a less than ogive.
We first prepare the cumulative frequency distribution table by more than method as given below:
Represent Lower class limits along X-axis and cumulative frequency along Y-axis.
Plot the points (50, 100), (55, 84), (60, 46), (65, 22), (70, 10), (75, 2) and (80, 0) on the graph and join them in a free hand to get a more than ogive.