Topic 6 - Samples and Populations Fast and Curious

A sample that includes only members of the population being studied

• Unbiased

• Systematic Sample

• Voluntary Sample

• Representative Sample

Tags

CCSS.HSS.IC.B.4

Fair opinion, not one-sided

• Bias

• Unbiased

• Convenience Sample

• Random Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A researcher puts out a request for members of a population to join the sample

• Voluntary Sample

• Random Sample

• Systematic Sample

• Representative Sample

Feeling or opinion that is one-sided, unfair.

• Random Sample

• Unbiased

• Biased

• Convenience Sample

Members of the population are put in some order, a starting point is selected at random, and a pattern is selected to survey the group

• Representative Sample

• Voluntary Sample

• Systematic Sample

• Random Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Choosing people who are easy for the researcher to reach and get in touch with

• Convenience Sample

• Random Sample

• Voluntary Sample

• Representative Sample

Every member of the population being studied has a equal chance to be selected for the sample

• Representative Sample

• Voluntary Sample

• Systematic Sample

• Random Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Example: A classroom of 30 students, 15 males and 15 females. In your sample you choose 3 males and 3 females to ask your question. This is a good reflection of the population.

• Random Sample

• Systematic Sample

• Voluntary Sample

• Representative Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Example: 200 students from a university were randomly chosen using an online name sorter to fill out a survey on the number of hours they study

• Representative Sample

• Unbiased

• Voluntary Sample

• Biased

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Example: A restaurant leaves comment cards on all of its tables and encourages customers to participate in a brief survey to learn about their overall experience

• Voluntary Sample

• Bias

• Systematic Sample

• Convenience Sample