Stats Part Last: All together!

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
+3
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a sample size in a survey?
Back
The sample size is the number of individuals or observations included in a survey or study. For example, in the New York Times poll, the sample size was 1025 women.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
2.
FLASHCARD QUESTION
Front
What does it mean to reduce variability in a study?
Back
Reducing variability means making the results of a study more consistent. This can be achieved by increasing the sample size.
Tags
CCSS.6.SP.B.5D
CCSS.HSS.ID.A.2
3.
FLASHCARD QUESTION
Front
How can we reduce bias in survey results?
Back
Bias can be reduced by increasing randomness in the selection of participants, ensuring that every individual has an equal chance of being chosen.
Tags
CCSS.HSS.IC.B.3
4.
FLASHCARD QUESTION
Front
What is the difference between an experiment and an observational study?
Back
An experiment involves manipulating variables to observe effects, while an observational study involves watching subjects without interference. For example, placing bacteria in different climates is an experiment.
5.
FLASHCARD QUESTION
Front
What is a confidence interval?
Back
A confidence interval is a range of values that is likely to contain the true population parameter. It provides an estimate of uncertainty around a sample statistic.
Tags
CCSS.HSS.IC.B.4
6.
FLASHCARD QUESTION
Front
What is margin of error in statistics?
Back
Margin of error indicates the amount of random sampling error in a survey's results. It helps to understand how much the sample results may differ from the actual population.
Tags
CCSS.HSS.IC.B.4
7.
FLASHCARD QUESTION
Front
What does it mean if a survey is biased?
Back
A biased survey is one that does not accurately represent the population being studied, often due to flawed sampling methods.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
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