What makes a representation material?
It is material if it influences a party's
1. willingness to contract
2. acceptance of any terms
3. willingness to accept the amount of consideration (if the underwriter would decline coverage, charge a different rate, or offer different coverage terms had they known the truth, the representation is material.
note that any material misrepresentation, even if made in good faith, makes the policy voidable, if the insurers relied on the misrepresentation.