Why did Academic skeptics use probability when making decisions?

Academic skeptics, particularly those associated with the Platonic Academy such as Carneades, utilized the concept of probability as a pragmatic solution to the challenge of daily living.12

Critics of the Academic skeptics argued that their intellectual stance—which held that nothing could be known with certainty—rendered human action impossible. In response, Carneades proposed that while absolute, objective truth might be unattainable, individuals could still function by relying on "probability" (or "approvability") as a practical guide for decision-making.1

By establishing reasonable or probable standards rather than seeking indubitable foundations, the Academic skeptics were able to distinguish between different courses of action without claiming to possess absolute knowledge. This approach allowed them to navigate the complexities of life and ethics while maintaining their skeptical commitment to the idea that no criteria exist for distinguishing the true from the false with complete certainty.2