Statistics | Definition, Types, & Importance | Britannica
Nov 7, 2025 · Statistics, the science of collecting, analyzing, presenting, and interpreting data. Currently the need to turn the large amounts of data available in many applied fields into useful information has …
ANOVA | Definition & Facts | Britannica
Nov 28, 2025 · ANOVA, statistical procedure used to compare means of three or more groups. ANOVA tests compare the amount of variance between and within groups to determine whether statistically …
Bayesian analysis | Probability Theory, Statistical Inference - Britannica
Oct 14, 2025 · inference, in statistics, the process of drawing conclusions about a parameter one is seeking to measure or estimate. Often scientists have many measurements of an object—say, the …
Probability and statistics | History, Examples, & Facts | Britannica
Nov 14, 2025 · Probability and statistics, the branches of mathematics concerned with the laws governing random events, including the collection, analysis, interpretation, and display of numerical …
Mean | Definition, Formula, & Facts | Britannica
statistics, the science of collecting, analyzing, presenting, and interpreting data. Governmental needs for census data as well as information about a variety of economic activities provided much of the early …
Statistics - Sampling, Variables, Design | Britannica
Nov 7, 2025 · Statistics - Sampling, Variables, Design: Data for statistical studies are obtained by conducting either experiments or surveys. Experimental design is the branch of statistics that deals …
Linear regression | Definition, Formula, & Facts | Britannica
Dec 13, 2025 · Linear regression, in statistics, a process for determining a line that best represents the general trend of a data set. The simplest form of linear regression involves two variables: y being the …
Percentage | Definition, Examples, & Usage | Britannica
Percentage, a relative value indicating hundredth parts of any quantity. One percent is a hundredth part; thus, 100 percent represents the entirety and 200 percent specifies twice the given quantity. …
Mean, median, and mode | Definition & Facts | Britannica
statistics, the science of collecting, analyzing, presenting, and interpreting data. Governmental needs for census data as well as information about a variety of economic activities provided much of the early …
Measure of association | Definition & Facts | Britannica
Measures of association are used in various fields of research but are especially common in the areas of epidemiology and psychology, where they frequently are used to quantify relationships between …