Statistics Vocabulary Review

Entire group you want to know something about

• mean

• population

• sample

• biased

one or more parts of the population are favored over others

• convenience sample

• biased sample

• unbiased sample

• voluntary response sample

group being studied

• sample

• population

• survey

• statistics

part of a group

• sample

• population

• simple random sample

• survey

accurately represents the entire population

• biased sample

• unbiased sample

• survey

• voluntary response sample

An entire population of people, animals, plants, or objects from which data can be collected.

• Population

• Sample

• Bias

• Validity

A subset of an entire group.

• Random Sample

• Sample

• Population

• Bias

When a sample is not representative of the larger population and favors one or more parts of the population.

• Biased Sampling

• Unbiased Sampling

A sample obtained in such a way that every element in the population has an equal chance of being selected for the sample.

• population

• sample

• random sample

• representative sample

The value appearing at the center of a sorted version of a list, or the mean of the two central values.

• Median 
• Range
• Mean
• Mode