In statistics, the Cochran–Mantel–Haenszel test (CMH) is a test used in the analysis of stratified or matched categorical data. It allows an investigator...

In frequentist statistics, power is a measure of the ability of an experimental design and hypothesis testing setup to detect a particular effect if it...

In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above...

Mantel–Cox test. The logrank test can also be viewed as a time-stratified Cochran–Mantel–Haenszel test. The test was first proposed by Nathan Mantel and...

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In statistics, the mode is the value that appears most often in a set of data values. If X is a discrete random variable, the mode is the value x at which...

In statistics, the frequency or absolute frequency of an event i {\displaystyle i} is the number n i {\displaystyle n_{i}} of times the observation has...

In statistics, censoring is a condition in which the value of a measurement or observation is only partially known. For example, suppose a study is conducted...

In statistics, a population is a set of similar items or events which is of interest for some question or experiment. A statistical population can be a...

In statistics, efficiency is a measure of quality of an estimator, of an experimental design, or of a hypothesis testing procedure. Essentially, a more...