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Prove E[Y|X] = f(X)

I have a model $Y = f(X) + \epsilon$ where $\epsilon$ is independent of $X$ and $\mathbb{E}[\epsilon]=0, \mathbb{E}\left[\epsilon^2\right]=\sigma^2$. Show that $$ f(X)=\mathbb{E}[Y \mid X] $$ This is ...
Cabbage Roll's user avatar
1 vote
1 answer
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Find $\mathbb{E} \bigg[ \frac{\textbf{h}^{H} \textbf{y}\textbf{y}^{H} \textbf{h}}{ \| \textbf{y} \|^{4} } \bigg]$ with Mathematica? [duplicate]

Considering the following complex random vectors (Complex Gaussian random variables): \begin{align} \textbf{h} &= [h_{1}, h_{2}, \ldots, h_{M}]^{T}\ \ \sim \mathcal{CN}(\textbf{0}_{M},d\textbf{I}_{...
Felipe Augusto de Figueiredo's user avatar