Variability Explorer
Explore range, variance, and standard deviation with interactive visualizations
Data Management
Add, remove, or generate different types of data to see how variability measures change
Current Data Points
5 data points • Mean: 18.80
15
20
18
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19
Range
7.00
Max - Min value
Variance
5.36
Average squared deviation
Std Dev
2.32
Square root of variance
Data Spread Visualization
See how your data points spread around the mean
Mean: 18.80
15
20
18
22
19
Data Points
Mean Line