If one reasons that because Roger is nice, all people from Minnesota must be nice, what type of fallacy is this?

The correct answer is a hasty generalization because this fallacy occurs when a conclusion is drawn about a whole group based on an insufficient sample size or an over-generalization from specific examples. In this case, the reasoning that all people from Minnesota must be nice because one individual, Roger, is nice lacks adequate evidence to support the broad claim. It takes a singular instance, which cannot be generalized to the entire population, and leaps to a sweeping conclusion without accounting for the diversity among individuals within that group.

Engaging in this type of reasoning overlooks the uniqueness of individuals and instead attributes one person's characteristic to an entire region's population, demonstrating a flaw in logical reasoning.