When a Sample Survey Asks People About Their Age or Some

Multiple Choice

When a sample survey asks people about their age or some physical characteristic, such as weight, some people who feel self-conscious may not give accurate responses.

A) This is a sampling error that causes bias.
B) This is a sampling error that increases variability.
C) This is a nonsampling error that causes bias.
D) This is a nonsampling error that increases variability.