$\chi^2 $ of multidimensional data
125991
Calculation of Pearson's Chi-squared statistic
377
Problem involving many squares and several variables.
19194
Chi-squared test when two vectors have different lengths
43500
How to show this curious combination of Exponential order statistics has a Chi-squared distribution?
158716
Cholesky versus eigendecomposition for drawing samples from a multivariate normal distribution
138186
Proving the given quadratic form is chi-squared $k$
90215
Proof/Derivation of Residual Sum of Squares (Based on Introduction to Statistical Learning)
30245
Finding distributions on $\mathbb{R^2}$ constrained by 2 equations.
74024
Higher dimensional equivalent of complex numbers
63614
Showing a Normal and a Chi square are independent
12184
How to prove that Normal Squared Distances follow a Chi-Square distribution?
67129
non-central chi-square probability and non-centrality parameter
44710
Vector space of real vectors over field complex scalars.
105136
relation between $R^2$ of simple regression and multiple regression
135479
Two-dimensional Vectors Problem
24653
Integral in $n-$dimensional euclidean space
7442
completing the square for Gaussian multivariate estimation