Problem 9.13

A study of drinking and driving has found that 40% of all fatal auto accidents

are attributed to drunk drivers, 1% of all auto accidents are fatal, and drunk

drivers are responsible for 20% of all accidents. Find the percentage of nonfatal

accidents caused by drivers who are not drunk.

The answer was 80.2%, cannot be right? As, drunkards have contributed 20% of all accidents, accidents caused by non drunkards should be 80%, therefore nonfatal accidents caused by non drunkards should be at most 80%? am I correct?

A study of drinking and driving has found that 40% of all fatal auto accidents

are attributed to drunk drivers, 1% of all auto accidents are fatal, and drunk

drivers are responsible for 20% of all accidents. Find the percentage of nonfatal

accidents caused by drivers who are not drunk.

The answer was 80.2%, cannot be right? As, drunkards have contributed 20% of all accidents, accidents caused by non drunkards should be 80%, therefore nonfatal accidents caused by non drunkards should be at most 80%? am I correct?

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