Figures which summarize or describe a data set, without making any inferences or generalizations. All measures listed on this page are descriptive statistics. In contrast, there's inferential statistics, in which inferences are made about the data - such as using a sample to make estimate about a population.
Descriptive statistics are used to summarize characteristics of a group of scores-for example, central tendency and dispersion or variability of scores. The mean, median TIT. mode, variance and standard deviation are descriptive statistics.
Products from statistical analysis that summarize, tabulate, organize, and graph data for the purpose of describing the population or group under study EHR/NSF Evaluation Handbook, Chapter Seven: GlossarySource web site
Descriptive statistics are used to describe the basic features of the data in a study. They provide simple summaries about the sample and the measures. Together with simple graphics analysis, they form the basis of virtually every quantitative analysis of data.