Question

DriverIntoxicated?Pedestrian Intoxicated?YesNoYes5885No250597If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was intoxicated. (Round your answer to 4 decimal places.)Probability =

Answer 1

Given:

The number of pedestrian intoxicated and driver is not intoxicated is 250.

The number of pedestrian intoxicated and driver is intoxicated is 58.

Total number of people is 58+85+250+597=990

The probability that the pedestrian was intoxicated is,

$P=\frac{58+250}{990}=\frac{308}{990}=0.3111$

Answer: probability is 0.3111