Use the data in the accompanying table
Use the data in the accompanying table (based on data from “Helmet Use and Risk of Head Injuries in Alpine Skiers and Snowboarders,” by Sullheim, et al., Journal of the American Medical Association, Vol. 295, No. 8).
| |
Head Injuries
|
Not Injured
|
|
Wore Helmet
|
96
|
|
656
|
|
No Helmet
|
480
|
|
2330
|
1. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone with a head injury.
2. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who wore a helmet.
3. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who had a head injury or wore a helmet.
4. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who did not wear a helmet or was not injured.
5. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who wore a helmet and was injured.
6. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who did not wear a helmet and was not injured
7. Helmets and Injuries If two different study subjects are randomly selected, find the
probability that they both wore helmets.
8. Helmets and Injuries If two different study subjects are randomly selected, find the probability that they both had head injuries.
9. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who did not wear a helmet, given that the subject had head injuries.
10. Helmets and Injuries If one of the subjects is randomly selected, find the probability of selecting someone who was not injured, given that the subject wore a helmet.
Answers
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Posted 15 Jun 2017 10:06 AM
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