A representative sample must include a. a disproportionate ...

[brutforce]

A representative sample must include
 
  a. a disproportionate number of white males.
  b. a disproportionate number of whites.
  c. all the significant demographic characteristics of the total population.
  d. at least 300 African American males.
  e. a collective expression of attitudes.

Question 2

Public opinion polls
 
  a. only came about after 1950.
  b. are not important.
  c. have always been accurate.
  d. have emerged as an integral part of American politics.
  e. were present in Greek politics.

[cam1229]

Answer to Question 1

c

Answer to Question 2

d

[brutforce]

Thanks for the timely response, appreciate it

[alvinum]

Excellent