Answer:International Mail. You can mail postcards, letters, large envelopes, and packages from the United States to other countries. ...
Military Mail. ...
Money Orders. ...
Passports. ...
Paying for Merchandise. ...
PC Postage. ...
Post Office™ Boxes. ...
Stamp Collecting.
Explanation:
When you click the arrows what are the answers. I’ll answer in the comments. Please respond.
Answer:
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.