Mathematics, 27.02.2020 05:46 chy2313
When a man observed a sobriety checkpoint conducted by a police department, he saw 655 drivers were screened and 7 were arrested for driving while intoxicated. Based on those results, we can estimate that Upper P (Upper W )equals0.01069, where W denotes the event of screening a driver and getting someone who is intoxicated. What does Upper P (Upper W overbar )denote, and what is its value? What does Upper P (Upper W overbar )represent? A. Upper P (Upper W overbar )denotes the probability of screening a driver and finding that he or she is not intoxicated. B. Upper P (Upper W overbar )denotes the probability of a driver passing through the sobriety checkpoint. C. Upper P (Upper W overbar )denotes the probability of screening a driver and finding that he or she is intoxicated. D. Upper P (Upper W overbar )denotes the probability of driver being intoxicated. Upper P (Upper W overbar )equals nothing
Answers: 1
denotes the probability of screening a driver and finding that he or she is not intoxicated.
represents the probability of a driver being screened and being found intoxicated. The event, being intoxicated, depends on the driver being screened. Hence, it is a conditional event. Its complement depends on the same condition but negates the dependent event. Hence, this complement is being screened but being found not intoxicated.
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