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Loic Guegan 2023-10-14 16:46:10 +02:00
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source/statistics/introduction.rst
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Introduction
==================
dd
Metrics
----------------
* **Expected value/Espérance**: Noted :math:`\mathbb{E}[X]`, is a **theorical value**. For example, when playing coin
flipping, the expected value for getting heads or tails is 0.5.
Variance
^^^^^^^^^^^^^^
Variance can be seen as the expected squared deviation from the mean of a random variable :math:`X`.