chapter 3: 3.1 probability terminology (concepts, simple, complements) homework score: 9/12 answered: 9/12…
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. \n\n|driver intoxicated|pedestrian intoxicated| | | | | | | |yes|no| |yes|52|68| |no|779|581| \n\nif 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 =
Answer
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)