Is The moon was full 4 weeks ago so it should be full again tonight an inductive or deductive argument?

The statement "The moon was full 4 weeks ago, so it should be full again tonight" is an example of an inductive argument. It draws a general conclusion based on a specific observation—that the moon is typically full approximately every 29.5 days. While the reasoning may seem plausible, it does not guarantee that the moon will be full again tonight, as inductive reasoning is based on probability rather than certainty.