A newspaper wants to take a poll about which candidate voters

Question

prefer for President. Identify any bias in the following sampling
method:
The newspaper calls people selected at random from
the local telephone book

Answer 1

The sampling method is biased because it only includes people who have a telephone and are listed in the local telephone book. This excludes people who may not have a phone, have an unlisted number, or use a cell phone instead of a landline. This could lead to a sample that does not accurately represent the entire population of voters.