biased/unbiased

1. A sample in which every person, object, or event has an equal chance of being selected.

• A. Random sample.
• B. Biased sample.

2. When a sample does not accurately represent the population it is a:

• A. Unbiased sample
• B. Biased sample

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

Susan polled 587 people throughout each city in her county.  Each city is the same size.  Is this sample of the residents of cities in the county likely to be biased?

• yes
• no

Henry surveyed the first 7 celebrities to arrive at the movie premiere.  Is this sample of celebrities likely to be biased?

• yes
• no

Suzie examined 7 flowers in each planter at the mall.  Each planter has an equal number of flowers.  Is this sample of the flowers at the mall likely to be representative?

• yes
• no

A teacher examined 17 different tests from each of her math classes.  Each class had the same number of tests.  Is this sample of the tests likely to be biased?

• yes
• no

Colton polled 22 people at the town senior center.  Is this a random sample of the town residents?

• yes
• no

Karen surveyed the first seven shoppers at the produce stand.  Is this sample of shoppers at the produce stand likely to be biased?

• yes
• no