X has the probability distribution: $\begin{array} { c c }
\mathrm { X } & \mathrm { P } ( \mathrm { X } ) \
- 1 & .2 \
0 & .3 \
1 & .5
\end{array}$
Compute the expected value of X.
A)1.0
B)0.3
C)0.7
D)0.5

Question

X has the probability distribution: $\begin{array} { c c } 
\mathrm { X } & \mathrm { P } ( \mathrm { X } ) \
- 1 & .2 \
0 & .3 \
1 & .5
\end{array}$
Compute the expected value of X.
A)1.0
B)0.3
C)0.7
D)0.5

Quizplus · Accepted Answer

The Answer of X has the probability distribution: $\begin{array} { c c } 
\mathrm { X } & \mathrm { P } ( \mathrm { X } ) \
- 1 & .2 \
0 & .3 \
1 & .5
\end{array}$
Compute the expected value of X.
A)1.0
B)0.3
C)0.7
D)0.5

X Has the Probability Distribution XP(X)−1.20.31.5\begin{array} { c c } \mathrm { X } & \mathrm { P } ( \mathrm { X } ) \\- 1 & .2 \\0 & .3 \\1 & .5\end{array}X−101​P(X).2.3.5​

X Has the Probability Distribution $\begin{array} { c c } \mathrm { X } & \mathrm { P } ( \mathrm { X } ) \\- 1 & .2 \\0 & .3 \\1 & .5\end{array}$