CCSS.Math.Content.HSS.IC.B.3

A set of observations that constitute PART of the population.

• Statistic
• Census
• Population
• Sample

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CCSS.Math.Content.HSS.IC.B.3

Why do we randomly select our samples?

• for control
• reduce bias
• so we don't get the same answers from everyone
• to eliminate confounding results

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CCSS.Math.Content.HSS.IC.B.3

Determine the type of sampling used in the following scenario: Divide the users of the Internet into different age groups and then select a random sample from each age group to survey about the amount of time they spend on the Internet each month.

• Systematic
• Simple Random
• Cluster
• Stratafied

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CCSS.Math.Content.HSS.IC.B.3

Identify the sampling design: Mr. Rhoades puts all of his students' names in a hat and randomly selects one without looking.

• cluster
• volunteer
• systematic
• simple random

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CCSS.Math.Content.HSS.IC.B.3

Identify the sampling design: Mr. Rhoades asks his roommate what his favorite TV show is

• cluster
• unbiased
• stratified
• convenience

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CCSS.Math.Content.HSS.IC.B.3

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:

• Simple Random Sample
• Stratified Random Sample
• Voluntary Response
• Systematic Random Sampling

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CCSS.Math.Content.HSS.IC.B.3

Flipping a fair coin in an experiment is a reasonable way to completely randomize in an experiment.

• True
• False

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CCSS.Math.Content.HSS.IC.B.3

Determine the type of sampling used in the following scenario: Divide students into freshmen/sophomores and juniors/seniors and then conduct a survey about the amount of time spent studying.

• Systematic

• Simple Random

• Cluster

• Stratified

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CCSS.Math.Content.HSS.IC.B.3

An Advanced Algebra teacher gives out a study guide before the test. The teacher lists the students who completed their study guide and compares their scores to the remaining Advanced Algebra students’ scores.

• Observational Study

• Experimental Study

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CCSS.Math.Content.HSS.IC.B.3

One day, Mrs. Sherman wants to estimate how many students did their HW. She draws from her card deck and gets a "1" and a "5". She then asks all the students in group 1 and all the students in group 5. This sampling technique is called?

• Simple

• Stratified

• Systematic

• Cluster

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CCSS.Math.Content.HSS.IC.B.3