$$\begin{array}{l}
\text { Find the mean of the distribution shown below. }\
\begin{array} { l | c c c }
\boldsymbol { X } & 2 & 3 & 4 \
\hline \boldsymbol { P } ( \boldsymbol { X } ) & 0.26 & 0.31 & 0.43
\end{array}
\end{array}$$
A) 1.67
B) 2.17
C) 3.17
D) 2.67

Question

$$\begin{array}{l}
\text { Find the mean of the distribution shown below. }\
\begin{array} { l | c c c } 
\boldsymbol { X } & 2 & 3 & 4 \
\hline \boldsymbol { P } ( \boldsymbol { X } ) & 0.26 & 0.31 & 0.43
\end{array}
\end{array}$$
A) 1.67
B) 2.17
C) 3.17
D) 2.67

Quizplus · Accepted Answer

The mean of a distribution is calculated by multiplying each value of X by its corresponding probability and then summing these products. For this distribution, the mean is calculated as follows: (2 * 0.26) + (3 * 0.31) + (4 * 0.43) = 0.52 + 0.93 + 1.72 = 3.17.

A) 167 B) 2

A) 167
B) 2