The Basic expected value formula is the probability of an event multiplied by the number of times the event happens: (P(x) * n).
P(A) is the probability of an event “A” n(A) is the number of favorable outcomes. n(S) is the total number of events in the sample space.
Probability is given by
[tex]Pr\text{ =}\frac{n(A)}{n(S)}[/tex]
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