0
$\begingroup$

I stumbled upon this formula while reading about supervised machine learning. I am wondering what the E over X means.

enter image description here

Does the E over X basically just mean the expected value of the random variable X? (=> E(X)) Or does it have a different meaning

Thank you very much

$\endgroup$
0
$\begingroup$

$\mathbb{E}$ symbol is usually used for expectation values. It means you are calculating the expected value with respect to the subscript variable

$$\mathbb{E}_X\rho(x, y) = \int x \rho(x,y)dx$$

$\endgroup$
1
  • $\begingroup$ Thanks, I was just confused by this new notation, that i have not seen before $\endgroup$ – Jan Kreischer May 21 '20 at 10:38

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.