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Question

For the following distribution, the modal class is?

MarksNumber of studentsBelow 103Below 2012Below 3027Below 4057Below 5075Below 6080

[3 Marks]


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Solution

Class intervalCumulative frequencyFrequency01033102012(123)=9203027(2712)=15304057(5727)=30405075(7557)=18506080(8075)=5
[2 Marks]

Here, we see that the highest frequency is 30, which lies in the interval 30-40.

The modal class is 30-40.
[1 Mark]


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