Question

when a man observed a sobriety checkpoint conducted by a police department, he saw 669 drivers were screened and 9 were arrested for driving while intoxicated. based on those results, we can estimate that p(w)=0.01345, where w denotes the event of screening a driver and getting someone who is intoxicated. what does p(w) denote, and what is its value? what does p(w) represent? a. p(w) denotes the probability of screening a driver and finding that he or she is intoxicated b. p(w) denotes the probability of screening a driver and finding that he or she is not intoxicated c. p(w) denotes the probability of a driver passing through the sobriety checkpoint. d. p(w) denotes the probability of driver being intoxicated p(w)= (round to five decimal places as needed)

Explanation:

The problem states that W denotes the event of screening a driver and getting someone who is intoxicated. Probability P(W) is the likelihood of this event occurring. The value of P(W) is given as the ratio of the number of intoxicated drivers (9) to the total number of drivers screened (669). Calculating 9/669 gives approximately 0.01345.

Answer:

A. P(W) denotes the probability of screening a driver and finding that he or she is intoxicated
P(W) = 0.01345