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

The process of gathering information/data from EACH member of the population.

• Census
• Interview
• Survey
• Questionnaire

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

Sampling method based upon LOCATION and you randomly pick a location and sample all there

• Stratified Sampling
• Simple Random Sampling (SRS)
• Cluster Sampling
• Systematic Sampling

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

A situation that occurs when an experimenter cannot tell the difference between the effects of the different factors on a variable

• Hawthorne Effect
• Confounding Variable
• Placebo Effect

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

A market research company wishes to find out whether the population of students at a university prefers Starbucks or Dunkin Donuts. A random sample of students is selected, and each student is asked first to try both but the order they try them is randomly decided with a coin toss (heads: Starbucks, then Dunkin. tails: vice versa). They then indicate which brand they prefer. This is an example of

• a completely randomized experiment
• an observational study
• a stratified sample
• a matched pairs experiment

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

Determine the type of sampling used in the following scenario: Ms. Dubovik samples her class by picking 10 numbers from her hat and each number is assigned to a student. This is ______________ random sampling.

• Systematic
• Simple
• Stratified
• Cluster

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

Before a nation-wide election, a polling place was trying to see who would win. Which choice best represents a sample?

• A selection of voters over age 50.

• A selection of male voters.

• A selection of voters of different ages.

• All voters.

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

Researchers want to determine if there is a relationship between whether or not a woman smoked during pregnancy and the birth weight of her baby. Researchers examined records for the past five years at a large hospital.

What type of study is described?

• Survey

• Experimental Study

• Observational Study

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

Sra. Garces wants to find the average height of all her students in her classes. She decides to use the first 5 people who walk in the door. Is this a good representative sample?

• Yes

• No

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

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.

This is an example of:

• Simple Random Sample

• Stratified Random Sample

• Cluster Random Sample

• Systematic Random Sampling

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

What type of Sampling?

You want to know the average number of hours that high school seniors spend playing video games in your state. You randomly select 20 high schools in the state and then ask all the seniors at each of the 20 high schools about their video game habits.

• Random

• Stratefied

• Systematic

• Cluster

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