$$\begin{array} { c | c c c } x & 20 & 40 & 60 \\\hline P ( X = x ) & 0.25 & 0.30 & 0.45\end{array}$$

$$\begin{array} { c | c c c } x & 20 & 40 & 60 \\\hline P ( X = x ) & 0.25 & 0.30 & 0.45\end{array}$$

A) 44
B) 40
C) 50
D) 60
E) 55