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Question

# Consider the following frequency distribution Class0âˆ’56âˆ’1112âˆ’1718âˆ’2324âˆ’29Frequency131015811 The lower limit of the median class is _____.

A

17.5
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B

11.5
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C

18
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D

18.5
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Solution

## The correct option is B 11.5ClassFrequencyCumulativefrequency0.5−5.513135.5−11.5102311.5−17.5153817.5−23.584623.5−29.51157 Given, classes are not continuous, so we can make it continuous by subtracting 0.5 from lower limit and adding 0.5 to upper limit of each class. Here, N2=572=28.5, which lies in the interval 11.5-17.5. Hence, the lower limit is 11.5

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