Suppose that voting in municipal elections is being studied and that the accompanying tables describes the probability distribution for four randomly selected people, where x is the number that voted in the last election. Is it unusual to find four voters among four randomly selected people?
$$\begin{array} { c | c }
\mathrm { x } & \mathrm { P } ( \mathrm { x } ) \
\hline 0 & 0.23 \
1 & 0.32 \
2 & 0.26 \
3 & 0.15 \
4 & 0.04
\end{array}$$
A) Yes
B) No

Question

Suppose that voting in municipal elections is being studied and that the accompanying tables describes the probability distribution for four randomly selected people, where x is the number that voted in the last election. Is it unusual to find four voters among four randomly selected people? 
$$\begin{array} { c | c } 
\mathrm { x } & \mathrm { P } ( \mathrm { x } ) \
\hline 0 & 0.23 \
1 & 0.32 \
2 & 0.26 \
3 & 0.15 \
4 & 0.04
\end{array}$$
A) Yes
B) No

Quizplus · Accepted Answer

The probability of all four people voting is 0.04, which is less than 0.05, making it unusual.

Suppose That Voting in Municipal Elections Is Being Studied and That