When use of telephone exchanges and random numbers to develop a sample of respondents in a landline phone survey is used, this is called ______.

Name: When use of telephone exchanges and random numbers to develop a sample of respondents in a landline phone survey is used, this is called ______.
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The Answer of When use of telephone exchanges and random numbers to develop a sample of respondents in a landline phone survey is used, this is called ______.

When Use of Telephone Exchanges and Random Numbers to Develop