Participants at the state fair were given 8 rings to toss. The number x of rings tossed onto a stick can be approximated by the probability distribution in the table. Use the probability distribution to find the mean and variance of the probability distribution.
$$\begin{array} { | l | c | }
\hline x & f ( x ) \
\hline 0 & 0.010 \
\hline 1 & 0.030 \
\hline 2 & 0.070 \
\hline 3 & 0.070 \
\hline 4 & 0.100 \
\hline 5 & 0.210 \
\hline 6 & 0.320 \
\hline 7 & 0.130 \
\hline 8 & 0.060 \
\hline
\end{array}$$

Question

Participants at the state fair were given 8 rings to toss. The number x of rings tossed onto a stick can be approximated by the probability distribution in the table. Use the probability distribution to find the mean and variance of the probability distribution.
​ $$\begin{array} { | l | c | } 
\hline x & f ( x ) \
\hline 0 & 0.010 \
\hline 1 & 0.030 \
\hline 2 & 0.070 \
\hline 3 & 0.070 \
\hline 4 & 0.100 \
\hline 5 & 0.210 \
\hline 6 & 0.320 \
\hline 7 & 0.130 \
\hline 8 & 0.060 \
\hline
\end{array}$$ ​
​

Quizplus · Accepted Answer

The Answer of Participants at the state fair were given 8 rings to toss. The number x of rings tossed onto a stick can be approximated by the probability distribution in the table. Use the probability distribution to find the mean and variance of the probability distribution.
​ $$\begin{array} { | l | c | } 
\hline x & f ( x ) \
\hline 0 & 0.010 \
\hline 1 & 0.030 \
\hline 2 & 0.070 \
\hline 3 & 0.070 \
\hline 4 & 0.100 \
\hline 5 & 0.210 \
\hline 6 & 0.320 \
\hline 7 & 0.130 \
\hline 8 & 0.060 \
\hline
\end{array}$$ ​
​

Participants at the State Fair Were Given 8 Rings to Toss