Process for computing the mean of grouped data.

Mean is the average of numbers in a group.

The arithmetic mean is equal to the sum of the numerical values of each and every observation, divided by the total number of observations.

The median is the middle number in a sorted, ascending or descending.

The median is the middle number in a sorted, ascending or descending.

The mode is the value that appears most often in a set of data values.

The arithmetic mean is equal to the sum of the numerical values of each and every observation, divided by the total number of observations.

Mode is the number that appears most often in a set of numbers.

A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data.

The middle number in a set of numbers.