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The Number of Customers in a Line at a Supermarket

Question 70

Multiple Choice

The number of customers in a line at a supermarket express checkout counter is a random variable with the following probability distribution.

x012345P(x) 0.090.260.290.200.090.07\begin{array} { c | c | c | c | c | c | c } \boldsymbol { x } & 0 & 1 & 2 & 3 & 4 & 5 \\\hline \boldsymbol { P } ( \boldsymbol { x } ) & 0.09 & 0.26 & 0.29 & 0.20 & 0.09 & 0.07\end{array}

Find P(2 or fewer) .


A) 0.65
B) 0.29
C) 0.35
D) 0.64

Correct Answer:

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