Lie detector tests measure a variety of your physiological responses when you make statements. The idea is that by measuring these it can tell if you are telling a lie or the truth when you make a statement. Yet, in most states they are not admissible as evidence in court. Ever wonder why? Well now you are equipped to answer that question. Imagine that people lie about 4% of the time. Imagine that a lie detector can detect a lie 90% of the time, and imagine that it can detect the truth 80% of the time. So, if you lie, there is a 90% chance that it will buzz and flash a red light. If you tell the truth there is an 80% chance that it will ding and flash a green light. So, if you say something (I don't know like maybe, "I didn't kill that guy."), and the machine buzzes and a red light flashes, what is the probability that you are lying? For this question draw a frequency tree BY HAND and upload the picture. Keep it handy because I will ask you some more questions based on this tree.