1
Question
The median of the following data is:
IQ60−7070−8080−9090−100100−110110−120120−130No. of pupils2351614137
The median of the following data is:
IQ60−7070−8080−9090−100100−110110−120120−130No. of pupils2351614137
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Solution
The correct option is A 102.86
Class IntervalFrequencyCumulative Frequency60−702270−803580−9051090−1001626100−1101440110−1201353120−130760
n2=30
∴ the median class is 100-110.
Median =l+(n2−cff)×h
=100+30−2614×10=102.86
102.86
Class IntervalFrequencyCumulative Frequency60−702270−803580−9051090−1001626100−1101440110−1201353120−130760
n2=30
∴ the median class is 100-110.
Median =l+(n2−cff)×h
=100+30−2614×10=102.86
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