TEKS.MATH.9-12.VI.A

To study the amount of time students spend doing homework each day, use a random number generator to select 25 students from the student enrollment database to survey.

• Convenience Sample
• Simple Random Sample
• Stratified Random Sample
• Interval Sample

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TEKS.MATH.9-12.VI.A

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. 

• systematic
• simple random sample
• convenience
• volunteer response

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TEKS.MATH.9-12.VI.A

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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TEKS.MATH.9-12.VI.A

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. 

• systematic
• random sample
• convenience
• biased sampling

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TEKS.MATH.9-12.VI.A

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:

• Random Sample
• Convenience Sampling
• Voluntary Response
• Systematic Sampling

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TEKS.MATH.9-12.VI.A

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

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TEKS.MATH.9-12.VI.A

Identify the Sample:
A restaurant wants to know if their customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.

• 20 customers
• All customers
• 8 customers
• Dessert

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TEKS.MATH.9-12.VI.A

Cluster, stratified, simple random, systematic, and proportional are all types of 

• convenience samples
• biased samples
• haphazard samples
• unbiased samples

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TEKS.MATH.9-12.VI.A

This sample consists of the entire population

• convenience
• census
• cluster
• simple

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TEKS.MATH.9-12.VI.A

Determine the type of sampling used in the following scenario: Randomly generate 5 area codes from the state of New York and count the number of high school students for each high school in the area code region.

• Systematic
• Simple Random
• Cluster
• Stratafied

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TEKS.MATH.9-12.VI.A