GCSE Maths Practice: mutually-exclusive-events

Question 9 of 10

Calculate P(X or Y) for mutually exclusive events.

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\( \begin{array}{l}\textbf{Event X = 2/3, Event Y = 1/6.} \\ \text{Find probability of X or Y.}\end{array} \)

Choose one option:

P(X or Y) = P(X) + P(Y)

Sum probabilities of X and Y.