If a and B Are Mutually Exclusive Events, with P(A) $\cup$

Short Answer

If A and B are mutually exclusive events, with P(A) = 0.30 and P(B) = 0.40, then P(A $\cup$ B) is: $\begin{array}{|l|l|}\hline \text { A. } & 0.10 \\\hline \text { B. } & 0.12 . \\\hline \text { C. } & 0.70\\\hline D.&\text { None of these choices are correct. }\\\hline \end{array}$