What is standard deviation?
Standard Deviation

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Standard deviation is a measure of how spread out the values in a data set are from the mean.
2.
FLASHCARD QUESTION
Front
How does a low standard deviation affect data points?
Back
A low standard deviation indicates that the data points are close to the mean, showing less variability.
3.
FLASHCARD QUESTION
Front
What does a high standard deviation indicate about a data set?
Back
A high standard deviation indicates that the data points are spread out over a wider range of values, showing more variability.
4.
FLASHCARD QUESTION
Front
If two data sets have the same mean, can they have different standard deviations?
Back
Yes, two data sets can have the same mean but different standard deviations, indicating different levels of variability.
5.
FLASHCARD QUESTION
Front
What does the symbol 'σ' represent in statistics?
Back
The symbol 'σ' represents the standard deviation of a population.
6.
FLASHCARD QUESTION
Front
What does the symbol 's' represent in statistics?
Back
The symbol 's' represents the standard deviation of a sample.
7.
FLASHCARD QUESTION
Front
In the context of standard deviation, what does 'variance' refer to?
Back
Variance is the square of the standard deviation and measures the average of the squared differences from the mean.
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