Biased or Unbiased Sampling

• The sample is unbiased

• The sample is biased because she is surveying only people at the mall.

• The sample is biased because she doesn't know if the people even watch television.

• The sample is biased because she is interested in only their favorite show.

• The sample is biased because it contains only people at the state park.

• The sample is biased because it contains only people who are environmentally conscious.

• The sample is biased because it contains only people who are outdoor minded.

• The sample is unbiased.

• The sample is unbiased.

• The sample is biased because he asks only people who own cars.

• The sample is biased because he asking people as they enter the dealership.

• The sample is biased because he is asking people at only one car dealership.

• The sample is biased because only smart students were surveyed.

• The sample is biased because only students at the library were surveyed.

• The sample is biased because only book loving students were surveyed.

• The sample is unbiased.

A newspaper randomly chooses 100 names from its subscriber list and then surveys those subscribers to find out if they read the sports section. This sample is ........

• unbiased

• biased

When a sample does not accurately represent the population it is a:​ ​ (a)  

• Biased Sample

• Unbiased sample

The sample should REPRESENT the population so you can INFER what the larger group is like.

If you take a BAD sample, it does not allow you to make inferences about the larger population.

Choose the option below that says "Biased Sample"

• A sample that accurately represents the population

• A sample that is selected randomly from the population

• Biased Sample

A school district wants to know if parents would prefer to get phone calls or emails from the schools. They survey the parents of all the seventh grade students enrolled in the district. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Shelley wants to survey grocery shoppers about their favorite brands. She goes to the store at 8am and surveys the first 50 people. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample

Casey surveyed the members of his soccer team to ask them what their favorite sport is. Is this a biased sample or unbiased sample?

• Biased Sample

• Unbiased Sample