Show that you use data to reduce risk around intuitive bets, not as a substitute for product judgment.
Strong answers recognise that data informs but does not decide. Good examples: using data to validate an intuition-driven bet, or overriding data when qualitative research revealed the "why" behind surprising numbers. Beware of candidates who are purely data-driven or purely gut-driven.
Reveals PM philosophy. The best PMs know when to trust data and when to trust their judgment. Ask: "When would you ship something the data says not to?"