Question(1 point) Below is a certain probability model: \begin{tabular}{|c|c|c|c|c|c|} \hline Outcome & $a$ & $b$ & $c$ & $d$ & $e$ \\ \hline Probability & 0.2 & & 0.15 & 0.05 & 0.3 \\ \hline \end{tabular}
Events $F$ and $G$ are given by $$F=\{a, c, e\}, \quad G=\{b, c, e\} .$$
Calculate each probability: $$\begin{array}{l} P(b)=0.15 \\ P(F \cup G)=0.7 \\ P(F \cap G)=0.35 \\ P\left(F^{\prime}\right)=0.45 \end{array}$$