Tag Archives: Measure of center


The median is one of two measures of center of one quantitative variable in summary statistics.When numbers in a data set are ordered sequentially, the median is the middle value in the total list of numbers. For the rest of the values in the data set, this means half of the numbers lie above the […]


The mean, also referred to as average, of a set of data is the sum of all the data elements divided by the total number of elements. As a mathematical equation it is represented as, , where y represents the data elements and n represents the total number of data elements. In descriptive statistics there are two […]