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讀西瓜書:7.1/7.2/7.3章

  • Here p(X,Y)p(X, Y ) is a joint probability and is verbalized as “the probability of X and Y ”. Similarly, the quantity p(YX)p(Y |X) is a conditional probability and is verbalized as “the probability of Y given X”, whereas the quantity p(X)p(X) is a marginal probability and is simply “the probability of X
    ”. These two simple rules form the basis for all of the probabilistic machinery that we use throughout this book