Which best describes bias, if any, from the sample surveyed?

survey: favorite vacation locations
sample: randomly selected visitors to a national park

A.
Since the sample is randomly selected, there is unlikely to be any bias.

B.
Since the people surveyed are visiting a national park, they may be biased against vacations close to home.

C.
Since the people surveyed are visiting a national park, they may be biased towards national parks.

D.
Since a large number of people visit national parks, the sample should be large enough to eliminate any bias.
@iGreen. @Data_L

Question

Which best describes bias, if any, from the sample surveyed? 

survey: favorite vacation locations 
sample: randomly selected visitors to a national park
 
 A.
Since the sample is randomly selected, there is unlikely to be any bias.
 
 B.
Since the people surveyed are visiting a national park, they may be biased against vacations close to home.
 
 C.
Since the people surveyed are visiting a national park, they may be biased towards national parks.
 
 D.
Since a large number of people visit national parks, the sample should be large enough to eliminate any bias.
@iGreen. @Data_L

anonymous · Answer

@Data_LG2

directrix · Answer

If the survey topic is : favorite vacation locations, then why would the sample be taken in a national park? That is just one vacation location. Whatever the survey there concludes, the result will be applicable only to national parks, not "favorite vacation locations." 

Look at your options again with that in mind.