From 01942582555f0aea4a64797bf4d2a8b8fa0bcc73 Mon Sep 17 00:00:00 2001 From: Loic Guegan Date: Sun, 15 Oct 2023 16:46:21 +0200 Subject: [PATCH] Minor changes --- source/statistics/metrics.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/source/statistics/metrics.rst b/source/statistics/metrics.rst index fee9adf..f153571 100644 --- a/source/statistics/metrics.rst +++ b/source/statistics/metrics.rst @@ -87,7 +87,7 @@ Thus, the degree of freedom in this computation is :math:`n`. When computing the standard deviation of :math:`X`, we have: .. math:: - \hat{\sigma}_x=\frac{\sum_{i=0}^n (x_i-\overline{x})^2}{n} + s^2=\frac{\sum_{i=0}^n (x_i-\overline{x})^2}{n} In this case, the degree of freedom is :math:`n-1`. As the mean is already known, only :math:`n-1` of the :math:`x_i` are allowed to vary. By knowing :math:`n-1` of the :math:`x_i`, we can deduce the last