Question

The manager of a local basketball arena wants to survey fans attending a game at the arena about other sports they enjoy.

Select Yes or No to tell whether each method results in a random sample of the population.

Answer 1

Yes, no, no, no

Explanation:

The first method is random. There's no bias in selecting fans spaced out evenly as they enter.

The second method is not random. It is biased towards those who hear the announcement and wish to participate.

The third method is not random. It is biased towards those in the biggest rush to leave.

The fourth method is not random. It is biased towards those with the best seats.