Quiz II

1. When studying the effects of motorcycle helmet use and severity of injuries head trauma was rated on a scale of 1 to 5 with 1 being least serious and 5 being most serious. This rating is:
   
   Qualitative and Ordinal
   
   
2. The percent of motorcycle riders who wear helmets was estimated. This variable
   is                                         :
   
   Quantitative and Continuous
   
3. The number of motorcycle accidents that occurred in Wisconsin last month is
   a                                          variable:
   
   Quanititative and Discrete
   
4. The time it takes to complete a task is a                                          variable. (circle all that apply):
   
   Quantitative and Continuous
    
5. In an exit poll of the most recent primaries voters were asked "Did you vote for John McCain?". Answers of "yes", "no" or "refuse to answer" were recorded. Answers to this question are                                          data. (circle all that apply):
   
   Qualitative and Nominal
    
6. The graph a above describes the race of people who death row inmates were convicted of killing as of 1/19/2000, Study the graph and answer the following questions:

1. What is the most common race of victims? About what percent of all victims does this race account for?
   
   
   Whites, about 83%
   
   
2. Approximately what percent of victims are Hispanic or Asian?
   
   About 7%

E-mail Mr. Callahan at stat110@edcallahan.com with questions or comments about this web site or about the class itself.