Class 11 Maths Statistics Mean

Median: Let’s arrange their score in ascending order in blue table. Now we will take the middle most score. Since we are talking about central tendency of data, middle most score should also reflect central tendency of data. Middle most score for May is 8, while that of Hari is 10.

So based on middle score or median data, Hari has performed better.

When the number of observations (n) is odd, the median is the value of the ((n+1)/2) Th observation.

When the number of observations (n) is even, the median is the mean of (n/2) & (n/2 + 1) Th observations.

Median Ignores extreme values & Tells the point from where 50% data is lesser and 50% data is more

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