In a random digit telephone survey, homeless people or people with only cell phones do not have telephones that can be called with random digit dialing. what type of bias is this? select one:
a. undercoverage biasb. non-response biasc. response bias due to respondent lying or deliberately giving incorrect information. d. response bias due to question wordinge. response bias due to interviewer influences

a. Undercoverage bias

Explanation:

Based on the information provided within the question it can be said that the bias being mentioned is Undercoverage bias. This refers to when a population of a sample are not being represented correctly, which in this scenario is because these people cannot be contacted. Therefore the correct bias that results from this is Undercoverage bias.

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explanation:

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