$$\begin{array}{l}
\text { Find the mean of the distribution shown below. }\
\begin{array} { l | c c c c }
\boldsymbol { X } & 2 & 5 & 6 & 7 \
\hline \boldsymbol { P } ( \boldsymbol { X } ) & 0.12 & 0.64 & 0.18 & 0.06
\end{array}
\end{array}$$
A) 0.25
B) 20
C) 1
D) 4.94

Question

$$\begin{array}{l}
\text { Find the mean of the distribution shown below. }\
\begin{array} { l | c c c c } 
\boldsymbol { X } & 2 & 5 & 6 & 7 \
\hline \boldsymbol { P } ( \boldsymbol { X } ) & 0.12 & 0.64 & 0.18 & 0.06
\end{array}
\end{array}$$
A) 0.25
B) 20
C) 1
D) 4.94

Quizplus · Accepted Answer

The mean of a distribution is calculated by summing the products of each value and its corresponding probability. Here, it's $2(0.12) + 5(0.64) + 6(0.18) + 7(0.06) = 0.24 + 3.2 + 1.08 + 0.42 = 4.94$.

A) 025 B) 20 C) 1 D) 4

A) 025
B) 20
C) 1
D) 4