Is it possible for a sample to yield better results than a ...

[joblessjake]

Is it possible for a sample to yield better results than a census, from a practical standpoint? Explain.

Question 2

Give an example of a poll that involves a self-selected sample.

[Bsand8]

Answer to Question 1

Yes. In any case where the population is large in size, a census will likely contain significantly more nonsampling errors than a carefully conducted sample survey.

Answer to Question 2

Choose any recent radio or television poll based on responses of listeners who phone in on a volunteer basis. Another example is a survey that appears on an Internet website.