A fair die has expected value (1+2+3+4+5+6)/6=3.5 even though no roll is 3.5.
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Expected value is the probability-weighted average outcome and helps describe randomized algorithm behavior. Experiment with a small example and see each step update.
A fair die has expected value (1+2+3+4+5+6)/6=3.5 even though no roll is 3.5.
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