Chapter 8 Quiz

Choose the letter of the sample.

A) all cards in deck

B) all the heart cards

• A

• B

Choose the letter that represents the population.

A) all people in Colorado

B) people living in Denver

• A

• B

An biased sample is representative of a population.

• True

• False

An unbiased sample is large enough, and random enough to be representative of a population.

• True

• False

Determine whether this sample is biased or unbiased:

You want to survey the number of books in your school people read over the summer. You survey 5 8th graders.

• biased

• unbiased

Determine whether the sample is biased or unbiased:

You want to estimate the number of people in town that would like to update City Park. You survey the people who are 75 or older.

• biased

• unbiased

Determine whether the sample is biased or unbiased:

You want to know how many students in your school enjoy drawing. You survey the 10 students from art class.

• biased

• unbiased

Determine whether the sample is biased or unbiased:

You want to know how many students enjoy listening to rap music. You survey every fifth student that walks in one morning.

• biased

• unbiased

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.

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

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

• 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.

Determine whether you should survey the population or a sample.

You want to know the favorite types of music of students in your homeroom.

• a sample; A sample will provide unbiased data.

• a sample; It is much easier to collect sample data in this situation.

• the population; The population will provide unbiased data.

• the population; The population is small enough to collect data.