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Question

The median of the following data is:

IQ60−7070−8080−9090−100100−110110−120120−130No. of pupils2351614137


A

102.86

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B

98.46

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C

97.47

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D

103.26

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Solution

The correct option is A

102.86


Class IntervalFrequencyCumulative Frequency607022708035809051090100162610011014401101201353120130760

n2=30
the median class is 100-110.
Median =l+(n2cff)×h
=100+302614×10=102.86


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