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

Multiple Choice

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