# Mean, Median, Mode

mean =

**Median :**Median is the middle term in the collected data. In case of even number of terms, take average of middle terms.

median =

L-lower limit of median class

N-total frequency = Î£

*fi**h*-width of median class.

C-cumulative frequency upto class preceding median class

f -cumulative frequency of median class

**Mode**: It is the value that occur most frequently or it is the value with maximum frequency.

mode = Ã—

*h*L-lower limit of class certaining mode

*f*

*-maximum frequency*

_{i}*f*

_{i}_{â€“1}-frequency preceding

*f*

_{i}*f*

_{i+}_{1}

*-*frequency just after

*f*

_{i}*h-*size of model class

Points to be noted

- For asymmetric distribution : mean = medians = mode
- For normal distribution : mean â€“ mode = 3(mean â€“ median).