Timing Analysis
A weight balanced tree gives close to optimal values for the expected length of successful search calculations. From the above example we get
ELOSS = depth(node A)*probability(node A) + depth(node C)*probability(node C) + ...
ELOSS = 2*0.17 + 5*0.03 + 4*0.09 + 3*0.12 + 1*0.20 + 3*0.11 + 3*0.10 + 2*0.18
ELOSS = 2.5
This is the expected number of nodes that will be examined before finding the desired node.
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