Blackjack
the Probability Distribution of a Random Variable X Is $$\begin{array} { | c | c c c c | } \hline \boldsymbol { x } & - 4 & 0 & 4 & 8 \\\hline p ( x ) & 0.15 & 0.25 & 0.20 & 0.40 \\\hline\end{array}$$

question 25

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.
$$\begin{array} { | c | c c c c | } \hline \boldsymbol { x } & - 4 & 0 & 4 & 8 \\\hline p ( x ) & 0.15 & 0.25 & 0.20 & 0.40 \\\hline\end{array}$$
-{Blackjack Narrative} Find the following probabilities:
a.
P(X $\le$ 0)
b.
P(X > 3)
c.
P(0 $\le$ X $\le$ 4)
d.
P(X = 5)

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