STATISTICS

Question

The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents.

 

Drivers Intoxicated-------Pedestrian Intoxicated

 

-----------------------------Yes------------------------No

Yes--------------------------45------------------------74

No--------------------------266-----------------------593

 

 

If one of the pedestrian deaths is randomly selected, find the probability that both the pedestrian and the driver were intoxicated.

Answer 1

Since there were 45 cases with both the driver and pedestrian intoxicated and 978 total cases the probability is

45/978 which is about 4.6%