Question

effect of blood alcohol concentration (bac) on motor vehicle crashes
according to the graph, how much more likely is a driver with a bac of 0.12 to cause a crash than a driver with a bac of 0.00?
○ twice as likely
○ four times as likely
○ ten times as likely
○ twelve times as likely

Explanation:

To determine how much more likely a driver with a BAC of 0.12 is to cause a crash than a driver with a BAC of 0.00, we analyze the graph. The y - axis represents the relative likelihood of causing a crash. For BAC = 0.00, the relative likelihood is 0 (or close to 0, as the graph starts near 0). For BAC = 0.12, we look at the graph and see that the relative likelihood is around 10 times (since the value on the y - axis for BAC = 0.12 is near 10, and for BAC = 0.00 it is near 0, so the ratio of the likelihoods is approximately 10).

Answer:

C. ten times as likely