deletions | additions       diff --git a/subsubsection_Mutual_Information_There_are__.tex b/subsubsection_Mutual_Information_There_are__.tex  index 119663f..d920b15 100644  --- a/subsubsection_Mutual_Information_There_are__.tex  +++ b/subsubsection_Mutual_Information_There_are__.tex 
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We define the Mutual Information of $X$ and $Y$, noted $I(X,Y)$, as:  \[ I(X,Y) = S(X) + S(Y) - S(X,Y) \]  Another definition Thus it may be interpreted as the amount  of $I(X,Y)$ is:  \[ I(X,Y) = \Sum_{(x,y) \in E_1\times E_2}P_{(X,Y)}(x,y)log\Bigg(\frac{P_{(X,Y)}(x,y)}{P_{X}(x)P_{Y}(y)}\Bigg) \] information shared by the random variables $X$ and $Y$.