What is the difference between variance and standard deviation?
Standard deviation is the square root of variance. It is expressed in the same units as the original data, making it more interpretable.
Calculator
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Analysis
Interpretation of the current calculator output
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How to Use
Step-by-step instructions
- 1Enter your dataset separated by commas or spaces.
- 2The calculator will compute various measures of dispersion.
Measures of Dispersion
Dispersion measures how spread out a dataset is. Common measures include range, variance, and standard deviation.
Range = Max - Min, Variance = Sum(x - xBar)^2 / (n-1)Variables:
RangeDifference between largest and smallest values^2VarianceExample
Sample Data
Inputs:
Data:10, 20, 30, 40, 50
Steps:
- 1.Range: 50 - 10 = 40
- 2.Mean: 30
- 3.Variance: 250
- 4.Std Dev: ~15.81
Result:
Range: 40, Std Dev: 15.81