Chi-square distribution and tests
Testing the value of a variance
Now that we know the distribution of the estimated variance of a normal distribution, it is possible to elaborate tests about the variance of the population.
Chi-Square Distribution
Probability Density Function
The chi-square distribution results when independent variables with standard normal distributions are squared and summed.
Chi-square Distribution. The sum of n independent squared random variables, each distributed following the standard normal distribution, is distributed as Chi-square with n degrees of freedom.
Information gain
Chi-square distribution
Recursive feature elimination (SVM based)
Feature extraction ...
 See also: Distribution, Variance, Normal distribution, Standard Deviation, Regression
  
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