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The following distribution gives daily income of 50 workers of a factory:
Daily income (in Rs): | 200-220 | 220-240 | 240-260 | 260-280 | 280-300 |
---|---|---|---|---|---|
Number of workers: | 12 | 14 | 8 | 6 | 10 |
Given:
The given distribution gives daily income of 50 workers of a factory.
To do:
We have to convert the given distribution to a less than type cumulative frequency distribution and draw its ogive.
Solution:
We first prepare the cumulative frequency distribution table by less than method as given below:
Represent Daily income along X-axis and cumulative frequency along Y-axis.
Plot the points (220, 12), (240, 26), (260, 34), (280, 40) and (300,50) on the graph and join them with a free hand to get the required ogive.
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