Levitt and Dubner use logos in the writing to show their reasonable explanations and thinking processes while going deeper into a topic. “If you were willing to erase your students’ wrong answers and fill in the correct ones, you probably wouldn’t want to change too many wrong answers. That would clearly be a tip-off”(Page 25 of Freakonomics). The authors use logos by thinking like a cheater, which in this case is the teacher, to catch a cheater. Levitt and Dubner’s logic to thinking like a cheater is that the cheater would not change all of the wrong answers because it would be obvious if students that were doing terrible suddenly started to get good grades. “Armed with information, experts can exert a gigantic, if unspoken, leverage: fear. Fear that your children will find you dead on the bathroom floor of a heart attack if you do not have angioplasty surgery” (Page 67 of Freakonomics). Levitt and Dubner use logos here to show that usually, a person would trust the doctor and do whatever they say especially in a life threatening situation. They go in deeper and use logic to figure that doctors know patients will trust what they say. Levitt and Dubner also know that doctors need to get paid whether someone is actually sick or not at all.