political pollsters now make sure to conduct a percentage of their telephone interviews by calling mobile…

political pollsters now make sure to conduct a percentage of their telephone interviews by calling mobile phones. this policy best addresses which potential source of bias?\no some of the population may not have access to other types of phones.\no the survey only reaches individuals who volunteer to be interviewed.\no the policy helps individuals understanding the wording of survey questions.\no some individuals contacted may choose to not participate.

political pollsters now make sure to conduct a percentage of their telephone interviews by calling mobile phones. this policy best addresses which potential source of bias?\no some of the population may not have access to other types of phones.\no the survey only reaches individuals who volunteer to be interviewed.\no the policy helps individuals understanding the wording of survey questions.\no some individuals contacted may choose to not participate.

Answer

Brief Explanations:

Political polling aims for a representative sample. By calling mobile phones, pollsters address the issue that some in the population may only have access to mobile - not other types of phones. This helps avoid under - representing those who rely solely on mobile phones. The other options are about non - response bias (volunteer bias, individuals not participating) or question - understanding bias, which are not related to the phone - type access issue.

Answer:

Some of the population may not have access to other types of phones.