When you select a sample for a sociological study, your aim is to ...

[lilldybug07]

When you select a sample for a sociological study, your aim is to get
 
  a. everyone in the population.
  b. your friends to be the sample.
  c. a representative sample.
  d. a different individual to answer each item on the questionnaire.

Question 2

Growth rate equals births minus deaths plus net migration is the
 
  a. basic demographic equation.
  b. statistician's mantra.
  c. crude birth rate.
  d. crude migration rate.

[trog]

Answer to Question 1

c. a representative sample

Answer to Question 2

a. basic demographic equation.