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Change the following distribution to a 'more than type' distribution. Hence draw the 'more than type' ogive for this distribution. - Mathematics

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Change the following distribution to a 'more than type' distribution. Hence draw the 'more than type' ogive for this distribution.

Class interval: 20−30 30−40 40−50 50−60 60−70 70−80 80−90
Frequency: 10 8 12 24 6 25 15
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Solution

Class interval Cumulative Frequency
More than 20 100
More than 30 90
More than 40 82
More than 50 70
More than 60 46
More than 70 40
More than 80 15

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