In the series of cIasses: 0-20, 20-40, 40-60, 60-80 of a grouped data, 25 is included in the class

0-20

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20-40

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40-60

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Solution

The correct option is B 20-40
Since 25 falls within the range of 20-40, in the series of cIasses: 0-20, 20-40, 40-60, 60-80 of a grouped data, 25 is included in the class 20-40

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Similar questions

In the groups 0-20, 20-40, 40-60, 60-80 of a grouped data, 20 is included in the group 0-20.

Prepare a frequency distribution table for the scores given:

42, 22, 55, 18, 50, 10, 33, 29, 17, 29, 29, 27, 34, 15, 40, 42, 40, 41, 35, 27,

44, 31, 38, 19, 54, 55, 38, 19, 20, 30, 42, 59, 15, 19, 27, 23, 40, 32, 28, 51.

Take the class intervals as 10-20, 20-30, 30-40, 40-50, 50-60.

From the frequency distribution table answer the following questions:

(i) What does the frequency corresponding to the class interval 20-30 indicate?

(ii) In which class intervals are the scores 10, 20 and 30 included?

(iii) Find the range of the scores.

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