News / Blog: #glossary

What is a regression equation?

A regression equation is a mathematical equation used to determine a measure of the relationship between two or more variables. It is usually used to describe a linear relationship between variables in order to make predictions about the relationship between them.

What is variance?

Variance is a measure of the spread of a distribution. It is defined as the mean square deviation of a distribution from its expected value. There is a direct relationship between variance and standard deviation. The variance is the square of the standard deviation.

What is a Parametric Test?

A parametric test is a test used to test a hypothesis about a particular parameter structure. It examines the statistical properties of a set of variables to determine whether they fit a particular model. Parametric tests typically use parameters calculated from the distribution of theoretical parameters to confirm or reject a hypothesis. These tests are often used in statistics to test hypotheses about populations or treatment effects.

What is the mean value?

The mean value is the arithmetic mean of a series of numbers. It is calculated by adding up all the values and dividing the result by the number of values.

What is a significance test?

A significance test is a statistical test used to determine whether or not a result is significant. It is used to determine whether the results of an experiment or study are truly relevant or whether they are simply due to chance. A significance test is usually used to test a hypothesis by determining the probability that a particular observation is random.