An inductive argument is one that starts with one specific case and tries to generalize from there.  This is in contrast to a deductive argument in which a person starts with a general rule and tries to apply it to a specific case.

Let us look at an example of inductive reasoning.  Let's say that I meet a person who is from Japan and that person does not like baseball.  From that, I infer that all Japanese do not like baseball.  I am taking one specific case and trying to create a general rule based on that case.