Descriptive statistics are descriptions of the main factors of a group of data or a summary of the information. These statistics give a snapshot of the information that has been gathered. This type of information is ofte... More »

The main advantage of statistics is that information is presented in a way that is easy to analyze, which makes its conclusions easily accessible. Comparative statistical analysis allows people to identify the strengths ... More »

Variance measures how the data in a given variable distribution are spread relative to the mean. Operationally, it is the average squared distance from the mean and is calculated by the square root of the standard deviat... More »

Descriptive statistics are statistics that describe the central tendency of the data, such as mean, median and mode averages. Variance in data, also known as a dispersion of the set of values, is another example of a des... More »

A term used in statistics, a percentile is a data point below which a given percentage of observations in a group falls. For example, a 20th-percentile label on a score of 1340 on the Scholastic Aptitude Test means then ... More »

In mathematics, the purpose of descriptive statistics is to describe the properties of data samples and measurements in a simpler way. It forms part of quantitative data analysis in statistics. More »

Statisticians use inferential statistics to reach conclusions that extend beyond the specific data studied, such as when using sample data to determine how a larger population might behave or respond to a specific stimul... More »