Standard Deviation
Test your knowledge of standard deviation — the measure of how spread out data points are around the mean.
Questions cover the population vs. sample standard deviation formulas, what a standard deviation of zero means, the 68-95-99.7 rule, and the relationship between variance and standard deviation.
The mean alone doesn't tell the whole story — see how well you understand the spread behind it.
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What This Quiz Covers
- Population vs. sample standard deviation
- The 68-95-99.7 rule for normal distributions
- Variance and its relationship to standard deviation
- Comparing variability between datasets
- How standard deviation responds to scaling data
- Interpreting a standard deviation of zero
Sample questions3 of 12 shown
Q1
What does standard deviation measure?
Q2
If a dataset has a standard deviation of 0, what does this indicate?
Q3
Which statements about standard deviation are true? (Select all that apply)
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