Calculate population and sample standard deviation with variance and mean using MaiCalcs. Essential for statistical analysis and data science.
• Population: σ = √(Σ(x-μ)²/N)
• Sample: s = √(Σ(x-x̄)²/(n-1))
• Measures data spread from mean
• Data: 1,2,3,4,5 → σ = 1.58
• Data: 10,20,30 → σ = 8.16
• Higher SD = more spread out data
Enter numbers to calculate standard deviation