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Reduced chi-squared statistic

Index Reduced chi-squared statistic

In statistics, the reduced chi-squared statistic is used extensively in goodness of fit testing. [1]

11 relations: Chi-squared distribution, Degrees of freedom (statistics), Deviation (statistics), Geochronology, Goodness of fit, Helium, Least squares, Radiometric dating, Thorium, Uranium, Variance.

Chi-squared distribution

No description.

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Degrees of freedom (statistics)

In statistics, the number of degrees of freedom is the number of values in the final calculation of a statistic that are free to vary.

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Deviation (statistics)

In mathematics and statistics, deviation is a measure of difference between the observed value of a variable and some other value, often that variable's mean.

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Geochronology

Geochronology is the science of determining the age of rocks, fossils, and sediments using signatures inherent in the rocks themselves.

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Goodness of fit

The goodness of fit of a statistical model describes how well it fits a set of observations.

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Helium

Helium (from lit) is a chemical element with symbol He and atomic number 2.

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Least squares

The method of least squares is a standard approach in regression analysis to approximate the solution of overdetermined systems, i.e., sets of equations in which there are more equations than unknowns.

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Radiometric dating

Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.

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Thorium

Thorium is a weakly radioactive metallic chemical element with symbol Th and atomic number 90.

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Uranium

Uranium is a chemical element with symbol U and atomic number 92.

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Variance

In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean.

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Redirects here:

Chi-squared per degree of freedom, Mean Square Weighted Deviation MSWD, Mean square weighted deviation, Reduced chi-square, Reduced chi-squared, Regression standard error, Standard error of the regression, Variance of unit weight, Weighted mean square deviation.

References

[1] https://en.wikipedia.org/wiki/Reduced_chi-squared_statistic

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