The fundamental definition of Mode is the most frequently occurring value of the variable, i.e. that value of the variable which occurs the maximum number of times in a data set.
How to calculate the median for grouped frequency distribution of discrete variables as well as continuous variables.
How to calculate the median for frequency type data, i.e. data where each observation has a corresponding frequency of occurrence, i.e. the number of times that particular observation has occurred in our data.
Median is an important measure of central tendency. When a frequency distribution has open-end classes median can be used as a measure of central tendency.
The arithmetic mean of a data set is defined to be the sum of all the observations of the data set divided by the total number of observations in the data set.