The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents. Driver Intoxicated? Pedestrian Intoxicated? Yes No Yes 64 84 No 260 570 If one of the pedestrian deaths is randomly selected, find the probability that the driver was intoxicated. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. prob = %

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter7: Percents
Section7.1: Percents And Fractions
Problem 31E
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Question

The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents.

Driver
Intoxicated?
Pedestrian Intoxicated?
Yes No
Yes 64 84
No 260 570



If one of the pedestrian deaths is randomly selected, find the probability that the driver was intoxicated.

Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol.
prob = %

Expert Solution
Step 1

The contingency table is given as follows:

 

Pedestrian Intoxicated?

 

Driver Intoxicated?

Yes

No

Row Total

Yes

64

84

148

No

260

570

830

Column Total

324

654

978

 

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