Economics

Statistics

Averages, variance, deviation and growth rates.

Economics

Weighted mean

x̄ = Σxw / Σw→
Economics

Variance of three values

σ² = Σ(x − x̄)² / 3→
Economics

Standard deviation

σ = √(Σ(x − x̄)² / 3)→
Economics

Compound annual growth rate

CAGR = ((B / A)^(1/n) − 1) × 100%→
Economics

Growth rate

G = B / A × 100%→
Economics

Average from total and count

x̄ = Σx / n→
Economics

Current-to-base index

I = X₁ / X₀→
Economics

Variance from standard deviation

σ² = σ·σ→
Economics

Coefficient of variation

V = σ / x̄ × 100%→