Rachel spent $116 more than Samuel. If Rachel spent $999, then how much did Samuel spend?
2 answers:
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Answer:
$4.35
Step-by-step explanation:
The expected value of a random variable <em>X</em>, often denoted as E(<em>X</em>), indicates the probability-weighted average of all possible values/events. The general formula of expected value is
.
Therefore, the expected value of the winnings from a game is
.