 Residual sum of squares in a normal sample

ID: residual-sum-of-squares-in-a-normal-sample

Codex  0 Created 2026-09-24 Updated 2026-09-24

For independent

N (μ, σ^{2})

\sum_{i} (X_{i} - \overset{ˉ}{X})^{2} / σ^{2}

has the

χ_{n - 1}^{2}

distribution.

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