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. As such, measures of central tendency are sometimes called measures of central location. They are also classed as summary statistics. Associated with statistics, measures of central tendency is the typical or central value of a probability distribution. The measure of Central Tendency attempts to signify a group of data by a single value; it is also called measures of central location. We are all familiar with at least one of the measures of central tendency, wherein Mean is the most commonly used one. The mean of data by the simplest of words means the average of the given data. Other measures of central tendency are median and mode. The Chapter explains essential and basic concepts like measures of central tendency, the arithmetic mean of grouped data and median.