Question: 1 in a study of fatal car accidents some accidents...
Question details
1. In a study of fatal car accidents, some accidents were attributed to high speed or drunk driving.

The probability that the fatality was attributed to high speeds was 0.57.

The probability that the fatality was attributed to drunk driving was 0.62.

The probability that high speed and drunk driving caused the accident was 0.41.

[2 pts] What is the probability that a fatal accident will be attributed to high speeds or drunk driving?

[2 pts] What is the probability that a fatal accident will be attributed to neither cause?

[2 pts] What is the probability that the fatality will be attributed to drunk driving, but not high speeds?
2. 1522 customers at a major retailer were surveyed whether or not
they made a
purchase and were satisfied with the service they received. The table below organizes the responses.
Satisfied with Service 
Not Satisfied with Service 
Total 

Made a Purchase 
130 
494 
624 
Did Not Make a Purchase 
715 
183 
898 
Total 
845 
677 
1522 

[2 pts] What is the probability that a shopper selected at random made a purchase, given that they were not satisfied with the service? Write your answer as a fraction.

[2 pts] What is the probability that a shopper selected at random was not satisfied with the service, given that they made a purchase? Write your answer as a fraction.