which type of probability model is using probability propagation what is the likelihood of the likelihood function what is the probability for phi how is estimate based on probability what is the probability distribution of phi$ gaussian likelihood the cost function of the likelihood function is the sum of what is ppi what is expected magnitude what is the ep how to find the probability distribution in ep cost function what is a probabilities distribution which factor is an estimate for probability cost function of py phi the likelihood is the ________ ep math definition what is meant by probability approximation what is the approximated q in the likelihood function which model use probability propagation to estimate the posterior distribution?