3 ms·

It is not a probability. https://en.wikipedia.org/wiki/Joint_probability_distribution#Mixed_case https://en.wikipedia.org/wiki/Joint_probability_distribution..

• nerfhammer 9y ago
  P(Y=y|X=x)fX(x) isn't that like p-value?
  • pedrosorio 9y ago
    It's a probability (conditional probability of the discrete rv Y given the continuous X=x) multiplied by the density of the continuous rv at X=x. It is the value of the joint density at X=x, Y=y. p-values are unrelated to this but are computed by looking at the cumulative distribution function (the integral of the density).