In a Box of 7 Batteries,3 Are Dead $$\begin{array} { l | c c c } \text { Number good } & 0 & 1 & 2 \\\hline \mathrm { P } \text { (Number good) } & 0.184 & 0.490 & 0.327\end{array}$$

question 198

Multiple Choice

In a box of 7 batteries,3 are dead.You choose two batteries at random from the box.Let the random variable X be the number of good batteries you get.Find the probability model for X.

• A) \[\begin{array} { l | c c c }
• \text { Number good } & 0 & 1 & 2 \\
• \hline \mathrm { P } \text { (Number good) } & 0.184 & 0.490 & 0.327
• \end{array}\]
• B) \[\begin{array} { l | c c c }
• \text { Number good } & 0 & 1 & 2 \\
• \hline \mathrm { P } \text { (Number good) } & 0.143 & 0.571 & 0.286
• \end{array}\]
• C) \[\begin{array} { l | c c c }
• \text { Number good } & 0 & 1 & 2 \\
• \hline \mathrm { P } \text { (Number good) } & 0.143 & 0.286 & 0.286
• \end{array}\]
• D) \[\begin{array} { l | c c c }
• \text { Number good } & 0 & 1 & 2 \\
• \hline \mathrm { P } \text { (Number good) } & 0.286 & 0.571 & 0.286
• \end{array}\]
• E) \[\begin{array} { l | c c c }
• \text { Number good } & 0 & 1 & 2 \\
• \hline \mathrm { P } \text { (Number good) } & 0.067 & 0.467 & 0.467
• \end{array}\]

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