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Question

For the following distribution, the modal class is

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



A

10-20

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B

20-30

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C

30-40

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D

50-60

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Solution

The correct option is C

30-40


MarksNumber of studentsCumulative frequencyBelow 103=331020(123)=9122030(2712)=15273040(5727)=30574050(7557)=18755060(8075)=580

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

The modal class is 30 - 40


Mathematics

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