Probability samples are advantageous to the researcher because:

Probability samples are advantageous to the researcher because:
 
  a. the method by which they are selected limits conscious and unconscious sampling bias.
 b. the accuracy or representativeness of the sample can be estimated.
 c. they are perfectly representative of the population from which they are drawn.
 d. all of these choices indicate the advantages of probability sampling.
 e. the method by which they are selected limits conscious and unconscious sampling bias and the accuracy or representativeness of the sample can be estimated.