4) A lie-detector works correctly with 80% probability when the person is lying, and with 90% probability when the perso
Posted: Wed May 11, 2022 7:29 pm
4) A lie-detector works correctly with 80% probability when the person is lying, and with 90% probability when the person is not. Assume that in a given court, typically 70% of the people who have to be tested with the lie detector do not say the truth. On the long run, which percentage of time does the lie detector make a mistake.