Standard Deviation

Flashcard
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the symbol 'σ' represent?
Back
Standard Deviation
2.
FLASHCARD QUESTION
Front
What does a higher standard deviation indicate about a data set?
Back
The data points are more spread out from the mean.
3.
FLASHCARD QUESTION
Front
What does a standard deviation of 0 mean?
Back
There is no spread of data.
4.
FLASHCARD QUESTION
Front
If two data sets have the same mean, can they have different standard deviations?
Back
Yes, they can have different standard deviations.
5.
FLASHCARD QUESTION
Front
What is the relationship between standard deviation and variance?
Back
Standard deviation is the square root of variance.
6.
FLASHCARD QUESTION
Front
What does a lower standard deviation indicate about a data set?
Back
The data points are closer to the mean.
7.
FLASHCARD QUESTION
Front
In a normal distribution, what percentage of data falls within one standard deviation of the mean?
Back
Approximately 68%.
Tags
CCSS.HSS.ID.A.4
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