Margin of Error

Flashcard
•
Mathematics
•
9th - 11th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the margin of error?
Back
The margin of error is a statistic that expresses the amount of random sampling error in a survey's results. It indicates the range within which the true value in the population is likely to fall.
Tags
CCSS.HSS.IC.B.4
2.
FLASHCARD QUESTION
Front
How can we reduce the margin of error in a survey?
Back
By increasing the sample size, which leads to more accurate estimates of the population parameters.
Tags
CCSS.HSS.IC.B.4
3.
FLASHCARD QUESTION
Front
If a survey reports a result of 57% with a margin of error of 7%, what is the range of values for the true percentage?
Back
The true percentage is likely between 50% and 64% (57% ± 7%).
Tags
CCSS.HSS.IC.B.4
4.
FLASHCARD QUESTION
Front
What does a margin of error of ±5.8% indicate?
Back
It indicates that the true value in the population could be 5.8% higher or lower than the reported statistic.
Tags
CCSS.HSS.IC.B.4
5.
FLASHCARD QUESTION
Front
What is the relationship between sample size and margin of error?
Back
As the sample size increases, the margin of error decreases, leading to more precise estimates.
Tags
CCSS.HSS.IC.B.4
6.
FLASHCARD QUESTION
Front
In a survey of 400 adults, if 89% pay their bills on time with a margin of error of 2%, what is the confidence interval?
Back
The confidence interval is 87% to 91%.
Tags
CCSS.HSS.IC.B.4
7.
FLASHCARD QUESTION
Front
What is a statistic?
Back
A statistic is a numerical value that describes a characteristic of a sample.
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