Question

the table summarizes results from 980 pedestrian deaths that were caused by automobile accidents. if one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was not intoxicated or the driver was not intoxicated. please enter a decimal to 4 decimal places. probability = submit question

Explanation:

Step1: Calculate total number of non - intoxicated cases

The number of cases where the pedestrian was not intoxicated is the sum of the cases where the driver was intoxicated and pedestrian was not ($72$) and the cases where the driver was not intoxicated and pedestrian was not ($591$). So, $72 + 591=663$.

Step2: Calculate total number of cases

The total number of pedestrian deaths is $41 + 276+72 + 591=980$.

Step3: Calculate the probability

The probability $P$ that the pedestrian was not intoxicated given that the driver or the pedestrian was not intoxicated is the number of non - intoxicated pedestrian cases divided by the total number of cases. So, $P=\frac{663}{980}\approx0.6765$.

Answer:

$0.6765$