AP Statistics - Chapter 4 Vocabulary

What is a set of observations selected from a population, usually intended to represent the population in a research study?

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A sample in which individuals were chosen who are easiest to reach is called?

• convenience sample

• simple random sample

• census

• voluntary response sample

• a

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A sample where n individuals are selected from a population in a way that every possible combination of n individuals is equally likely is called?

• convenience sample

• simple random sample

• census

• voluntary response sample

• a

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We call the distribution of values taken by the statistic in all possible samples of the same size from the same population what?

What do we call the tendency of a sample statistic to over- or under-estimate the value of a population parameter?

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The sampling design where individuals can choose on their own whether to participate in the sample is called ______.

• census

• voluntary response

• convenience sample

• stratified random sample

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CCSS.RI.11-12.7

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A sample design that breaks a population into groups and then takes a SRS to determine the group to include in the sample, including everyone from the selected group is called a ___________.

• stratified random sample

• simple random sample

• cluster sample

• completely randomized

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_____ occurs when some groups in the population are left out of the process of choosing the sample.

• confounding

• nonresponse bias

• response bias

• undercoverage

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Bias introduced to a sample when a large fraction of those sampled fails to respond is called _______.

• undercoverage

• response bias

• nonresponse bias

• confounding

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Anything in a survey design that influences responses is called _______. (Choose the best answer)

• response bias

• wording bias

• confounding

• undercoverage

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CCSS.RI.11-12.7

CCSS.RI.9-10.7

CCSS.RL.11-12.7

CCSS.RL.8.7

CCSS.RL.9-10.7