Statistical measures
The Statistics: It is a study that is mainly responsible for describing the key characteristics of a population.The "key" characteristics will depend on the type of study that is being done. statistics consists of a series of methods, measures and parameters that allows to form a very complete description of the population that is being studied.
Types of statistics
Descriptive and Inferential StatisticsMeasures of central tendency
These methods serve to find a number that is in the midst of the data.
Mean median and mode Mean for grouped data Median for grouped data Mode for grouped dataMeasures of dispersion
The following methods are used to determine how dispersed the data are, that is, how far are the data from the center.
Mean deviation Mean deviation for grouped data Standard deviation