Final answer:
The statement 'The probability that one or another event will occur in the next generation' can be determined using the addition rule of probability.
Step-by-step explanation:
To match the statement 'The probability that one or another event will occur in the next generation' to the appropriate probability rule, we use the addition rule of probability. When considering two or more events that can occur separately (mutually exclusive), this rule states that the probability of one event or the other event happening is the sum of their individual probabilities, subtracting the probability of both events occurring together if they are not mutually exclusive. In other words, P(A OR B) = P(A) + P(B) - P(A AND B).