Question

Determine whether the sample is biased or unbiased. Explain.

You want to estimate the number of people in a town who think that a park needs to be remodeled. You survey every 10th person who enters the park.

Choices:

biased; The sample is not representative of the population because people who go to a park are more likely to think that the park needs to be remodeled.

biased; The sample is representative of the population and selected at random.

unbiased; The sample is representative of the population because people who go to a park are more likely to know the park's needs.

unbiased; The sample is representative of the population, selected at random, and large enough to provide accurate data.

Answer 1

"unbiased; The sample is representative of the population, selected at random, and large enough to provide accurate data."

Explanation:

Choosing the 10th person each time for a sample survey is unbiased as the chances of their opinion matching their opinion regarding the survey is highly unlikely. Hence, the data is accurate as everyone's opinion will differ throughout every 10th person.

Hope that helps!