Essay
Blackjack The probability distribution of a random variable X is shown below,where X represents the amount of money (in $1,000s)gained or lost in a particular game of Blackjack. 
-{Blackjack Narrative} Find the following values and indicate their units.
a.E(X)
b.V(X)
c.Standard deviation of X
Correct Answer:
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a. $3.40
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Correct Answer:
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