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Question

The mid-value of a class interval is 42. If the class size is 10, then the upper and lower limits of the class are


A

37 and 47

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B

47 and 37

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C

37.5 and 47.5

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D

47.5 and 37.5

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Solution

The correct option is B

47 and 37


Mid value = 42 and class size = 10

Upper limits = 42 + 102 = 42 + 5 = 47

and lower limit = 42 102 = 42 - 5 = 37

Upper class limit and lower class limits are 47 and 37


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