the probability of a spinner stopping on 5 is 1/9 . the probability of the spinner stopping on 6 is 4/9 . what is the probability of the spinner stopping on 5 or 6?
The events 'stop on 5' and 'stop on 6' are mutually exclusive. Therefore we add the probabilities of each event to find P(5 or 6): P(5 or 6) = 1/9 + 4/9 = 5/9. The correct answer is c.
