Exercise 13.9

Given the full joint distribution shown in Figure dentist-joint-table, calculate the following:

  1. $\textbf{P}({toothache})$.

  2. $\textbf{P}({Catch})$.

  3. $\textbf{P}({Cavity}{catch})$.

  4. $\textbf{P}({Cavity}{toothache}\lor {catch})$.

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