loic/science-notes
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Minor changes

Browse source
This commit is contained in:
Loic Guegan 2023-10-15 16:46:21 +02:00
parent 9e279ad51d
commit 0194258255
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
source/statistics/metrics.rst
View file

@ -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