When Anna’s old roommate would go to the kitchen first thing in the morning, she would always make coffee. Anna would stay in bed a few extra minutes and grab a cup of coffee as she left for class. Now Anna hears her new roommate go to the kitchen, so she stays in bed a few extra minutes. As she leaves for class, she is surprised that there is no coffee. Anna’s mistaken assumption that her roommate would make coffee is based on ________.