Instruction 17-2
the Following Payoff Table Shows Profits Associated with a Set

Instruction 17-2
The following payoff table shows profits associated with a set of three alternatives under two possible events.
$\begin{array} { c r r r } States & A 1 & A 2 & A 3 \\\hline 1 & 12 & - 2 & 8 \\2 & 4 & 10 & 5\end{array}$
where: $\quad S 1$ is event $1 \quad A 1$ is action alternative 1
$\quad\quad\quad\quad S 2$ is event $2 \quad A 2$ is action alternative 2
$\quad\quad\quad\quad\quad\quad\quad A 3$ is action alternative 3
-Referring to Instruction 17-2,if the probability of S1 is 0.5,then the coefficient of variation for A1 is

A) 1.5.
B) 0.231.
C) 0.5.
D) 2.