Find probability of event C or D, mutually exclusive.
\( \begin{array}{l}\textbf{Event C = 1/5, Event D = 2/5.} \\ \text{Find probability of C or D, mutually exclusive.}\end{array} \)
Choose one option:
Use P(C or D) = P(C) + P(D).
Add the probabilities of C and D.
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