When using the telephone interview method, the problem of ...

[cherise1989]

When using the telephone interview method, the problem of unlisted numbers
 
  a. is a significant problem resulting in biased samples.
  b. can be overcome through follow-up questioning.
  c. can be overcome through the use of random-digit dialing.
  d. is not a problem because almost all numbers can be found on the internet.

Question 2

To display the relationship between two quantitative variables, one should use
 
  a. a bar graph.
  b. a histogram.
  c. a scatterplot.
  d. z scores.

[bookworm410]

Answer to Question 1

C

Answer to Question 2

C

[cherise1989]

Thanks for the timely response, appreciate it

[epscape]

Gracias!