In the class intervals 10-20, 20-30, the number 20 is included in:

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MCQ (Single)Class Interval and Class LimitsNCERT Exemplar

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The width of each of five continuous classes in a frequency distribution is 5 and the lower class-limit of the lowest class is 10. The upper class-limit of the highest class is:

MCQ (Single)Class Interval and Class Limits

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MCQ (Single)Class Interval and Class Limits