Which of the following would come closest to recruiting a random sample of college students?

Which of the following would come closest to recruiting a random sample of college students?
 
  a. drawing 50 telephone numbers from a hat containing the phone numbers of all students
  b. advertising for 50 volunteers with posters in the dining halls
  c. asking 50 people in the library on Saturday morning to participate
  d. calling the first 50 names from an alphabetical list of all students

Question 2

Why is the study of mice injected with morphine useful to humans?
 
  a. Mice cannot overdose on morphine.
  b. Mice display tolerance to morphine, just as addicts develop tolerance to heroin (a derivative of morphine).
  c. Mice do not show effects of context in their tolerance to morphine.
  d. The study of mice cannot be related to human drug addicts.

Question 3

Descriptive and inferential are forms of statistics, while _______ are forms of data.
 
  a. measurement and categorical
  b. parameters and statistics
  c. populations and samples
  d. random and nonrandom