Answer
Polly believes that her father is smart because he explained the math problem
Step-by-step explanation
An attribution error is a situation where people tend to think or to have a belief that someone is behaving in a certain behavior because of certain factors. Factors which people normally relate to other peoples behaviors are such as traits,peoples ability to do something or even their feelings. This creates a scenario where people are conclusive on how one views causes positive or negative behaviors and outdo others.