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Question

The below table shows the profit made by a group of shops in mall. Then the median is

Profit per shop less than (%)102030405060No. of shops1230577794100



A

27.4

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B

31.2

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C

26.8

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D

23.7

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Solution

The correct option is A

27.4


Cumulative frequencies are given by

C.ICFFrequency01012121020301820305727304077204050941750601006Total100

n2=1002=50

CF nearest to 50 and greater than 50 is 57

 Median=l+(n2cff)×hMedian=20+(503027)×10

Median = 27.4


Mathematics

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