1. The problem is to predict the next number of sets in a match series between Gusev M. and Yankovsky A. based on past match results. 2. We analyze the last 4 matches' set scores: - 25.12.25: Gusev 0, Yankovsky 3 - 21.12.25: Gusev 3, Yankovsky 0 - 10.12.25: Gusev 3, Yankovsky 2 - 10.12.25: Yankovsky 1, Gusev 3 3. The number of sets played in each match are 3, 3, 5, and 4 respectively. 4. To predict the next number of sets, we can calculate the average number of sets played: $$\text{Average sets} = \frac{3 + 3 + 5 + 4}{4} = \frac{15}{4} = 3.75$$ 5. Since the number of sets must be a whole number, we round to the nearest integer: $$4$$ 6. Therefore, the predicted number of sets for the next match is 4. This prediction assumes the pattern of match lengths remains consistent.