Question

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

driver intoxicated?	pedestrian intoxicated?
yes	46	78
no	242	618

if one of the pedestrian deaths is randomly selected, find the probability that the driver was not intoxicated. (please enter a decimal, and round your answer to 4 decimal places.)
probability =

Explanation:

Step1: Calculate total number of pedestrian deaths

The total number of pedestrian deaths is the sum of all the values in the table. So, $46 + 78+242 + 618=984$.

Step2: Calculate number of deaths with non - intoxicated drivers

The number of deaths with non - intoxicated drivers is $242+618 = 860$.

Step3: Calculate the probability

The probability $P$ that the driver was not intoxicated is the number of deaths with non - intoxicated drivers divided by the total number of pedestrian deaths. So, $P=\frac{860}{984}\approx0.8740$.

Answer:

$0.8740$