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what can we find mean and meadian

Posted by Sourabh Sharma 5 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years, 5 months ago

The mean (or average) of a number of observations is the sum of the values of all the observations divided by the total number of observations.
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.

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.

2Thank You

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CBSE > Class 09 > Mathematics