Mathematics, 02.03.2020 20:40, moonlightparis9015
Polygraph lie-detector machines are commonly used in criminal investigations. The device measures nervous excitement, operating on the idea that if a person is telling the truth they will remain calm. The American Polygraph Association claims that polygraphs accurately identify liars 90% of the time. In other words, if a person lied the test results will be positive 90% of the time. Although the polygraph test is good at identifying liars, there is a 50% chance that the polygraph test will say a truthful person is lying. A police force wants to predict the accuracy of lie-detector tests for 1,000 suspected criminals. Assume that 700 per 1,000 suspected criminals tell the truth during polygraph tests. Lie Truth Row Totals Test result: negative P Test result: postive Q Column Totals 1,000 Barber, N. (2013). Do Lie Detectors Work? Psychology Today . What is the probability that a person is telling the truth given that the lie detector test has a positive result? Group of answer choices 350 out of 700= 0.50 350 out of 1,000 = 0.35 350 out of 620 = 0.56 350 out of 380 = 0.92
Answers: 3
Mathematics, 21.06.2019 18:00, jeffylovesgreenbeans
Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.
Answers: 1
Mathematics, 21.06.2019 18:30, gonzaloc
Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students
Answers: 2
Polygraph lie-detector machines are commonly used in criminal investigations. The device measures ne...
Mathematics, 26.06.2019 23:50
Mathematics, 26.06.2019 23:50
Mathematics, 26.06.2019 23:50
English, 26.06.2019 23:50