GCSE Maths Practice: mutually-exclusive-events

Question 1 of 10

Calculate P(A or B) for mutually exclusive events.

\( \begin{array}{l}\textbf{Event A = 3/8, Event B = 5/8.} \\ \text{Find probability of A or B.}\end{array} \)

Choose one option:

P(A or B) = P(A) + P(B)

Add probabilities when events cannot occur together.