To overcome sampling bias of unlisted numbers, some researchers ...

[serike]

To overcome sampling bias of unlisted numbers, some researchers use ________, which involves the random generation of telephone numbers to be called.
 a. random-digit dialing
 b. plus-one sampling
 c. sampling control
 d. computer assisted interviewing

Question 2

Salespeople know that buyers do not want to spend a lot of time reading sales proposals that are inappropriate for solving their particular needs. Accordingly, salespeople need to make sure they write an enticing ____.
 a. Needs and Benefits Analysis
  b. Company Description
  c. Executive Summary
  d. Cover page
  e. Introduction

[Qarqy]

Answer to Question 1

a

Answer to Question 2

C