What qualifies a case to be heard in federal courts regarding individuals from different states?

A case qualifies to be heard in federal courts regarding individuals from different states primarily under the principle of diversity jurisdiction. This is established to provide a neutral forum for litigants from different states, which helps prevent potential biases that could arise in state courts. For federal courts to have jurisdiction based on diversity, the amount in controversy must exceed $75,000. This threshold is set to ensure that only cases involving significant disputes are adjudicated at the federal level, aligning with the federal interest in resolving substantial matters that cross state lines.

Therefore, the amount of $75,000 is a critical parameter; cases involving less than this amount are typically resolved in state courts. While civil disputes and federal questions can also qualify cases for federal court jurisdiction, the specific context of individuals from different states is distinctly tied to the requirement surrounding the amount in controversy, hence supporting the correctness of the answer regarding diversity jurisdiction.