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Question

The following are the marks obtained in Maths by students of Class 8:
51, 94, 34, 20, 50, 81, 81, 90, 76, 34, 51, 86, 93, 99, 26, 54, 85, 71, 88, 40, 44, 56, 55, 57, 78, 53, 81, 78, 65, 78.

Group the data and find out how many students scored between 60 and 70?



A
1
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B
2
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C
3
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D
4
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Solution

The correct option is A 1
Arrange the given data in the form of a continuous frequency distribution table.

Class intervalFrequency20302304024050250608607017080580906901004

From the frequency distribution table, one can infer that, the number of student who scored between 60 and 70 is 1.

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