Question

chapter 3: 3.1 probability terminology (concepts, simple, complements) homework score: 9/12 answered: 9/12 progress saved done question 11 the table summarizes results from pedestrian deaths that were caused by automobile accidents.

driver intoxicated

pedestrian intoxicated

yes

no

yes

52

68

no

779

581

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 values in the table. So, \(52 + 68+279+581=(52 + 68)+(279 + 581)=120 + 860 = 980\).

Step2: Calculate number of deaths where driver was intoxicated

The number of deaths where the driver was intoxicated is \(52+68 = 120\).

Step3: Calculate the probability

The probability \(P\) that the driver was intoxicated is given by the formula \(P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\). So, \(P=\frac{120}{980}=\frac{6}{49}\approx0.1224\).

Answer:

\(0.1224\)