define mean , median and mode .
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mean - it is also called average of observation.it is the sum of all the observation divided by the total number of observations.it has three methods -1.assumed mean method,2 .direct mean method ,3. step- deviation method.
mode- it is a value of the observation having maximum frequency.
medium- it is a measure of central tendency which gives the value of the middle most observation in the data
mode- it is a value of the observation having maximum frequency.
medium- it is a measure of central tendency which gives the value of the middle most observation in the data
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plz mark brainlest
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Mean : sum of observation / no of observations
Median
Median
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