In an ideal world, every decision would be backed by complete, perfect, and unambiguous data. We would know the exact outcome of every choice before we make it.
In the real world of technology and business, this is almost never the case. You will frequently be forced to make important decisions with incomplete information. The market data might be ambiguous. The user research might be contradictory. The technical path forward might be full of "unknown unknowns."
Waiting for perfect information is a form of paralysis. The ability to make a sound, reasoned decision in the face of this ambiguity is a critical skill.
Your answer to this question reveals your judgment, your tolerance for risk, and your process for moving forward when the path isn't perfectly clear.