Suppose there are 40 Republicans and 35 Democrats in a room. What is the ratio of Republicans to ...

Suppose there are 40 Republicans and 35 Democrats in a room. What is the ratio of
  Republicans to Democrats?
 
  a. 0.88
  b. 1.14
  c. 1.76
  d. 2.28

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The set of elements (people) larger than or different from the population that was
  sampled and to which the researcher would like to generalize any findings is called:
 
  a. Target Population
  b. Study Population
  c. Universal Population
  d. Sampling Frame

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Which of the following is an example of ecological data?
 
  a. a sample of high school students
  b. the number of families in a city
  c. a survey of your classmates
  d. a sample of construction workers