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In the class intervals 10-20 and 20-30, 20 is not included in which interval?

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10-20

20-30

Both the intervals

None of the intervals

answer is A.

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Detailed Solution

Whenever there is a continuous classes intervals higher limit of class will not be counted. So 20 will not be counted in first class interval. It will be counted in 20-30 not in 10-20 class. So the correct answer is 1.

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