Assume that the event K and M are mutually exclusive, and that P(K) = 0.2 and P(M) = 0.6. What is the probability, P(K or M)?
Since events K and M are mutually exclusive, meaning they cannot occur at the same time, the probability of either event K or event M occurring is the sum of their individual probabilities:
P(K or M) = P(K) + P(M) = 0.2 + 0.6 = 0.8
Therefore, the probability of event K or event M occurring is 0.8 or 80%.