hm would not work if there were just two
    attributes in the model rather than three.

2.  Show the calculations for the first iteration of EM starting from
    Equation (<a class="equationRef" title="" href="#">candy-64-equation</a>).

3.  What happens if we start with all the parameters set to the same
    value $p$? (<i>Hint</i>: you may find it helpful to
    investigate this empirically before deriving the general result.)

4.  Write out an expression for the log likelihood of the tabulated
    cand