The new cashier at the cafeteria angrily tells Tony that he'd "better get his act together" when Tony reveals he forgot his meal card and needs to fill out a form to pay for his lunch. According to the fundamental attribution error, Tony is likely to:

decide the cashier is a mean, angry person

Explanation:

Fundamental attribution error: In psychology, the term "fundamental attribution error" is defined as an individual's propensity to "overemphasize" his or her personal characteristics and therefore ignores or avoids or "under-emphasize" other situational factors while judging or analyzing someone else's behavior.

Example: If something misfortune occurs to someone else then a person blames the situation on the other person's behavior or internal cause most of the time.

In the question above, Tony is likely to decide the cashier is a mean and angry person as per the fundamental attribution error.