Data & Visualization
Dataset
Visualization
Statistics
Count (N)—
Mean (x̄)—
Median—
Mode—
Range—
Population Var (σ²)—
Population SD (σ)—
Sample Var (s²)—
Sample SD (s)—
Q1 (25th percentile)—
Q3 (75th percentile)—
IQR (Q3−Q1)—
Outliers (1.5×IQR)—
Skewness—
Presets
Key Formulas
Mean: x̄ = Σxᵢ / N
Population SD: σ = √(Σ(xᵢ−x̄)²/N)
Sample SD: s = √(Σ(xᵢ−x̄)²/(N−1))
IQR = Q3 − Q1
Outlier if: x < Q1−1.5×IQR or x > Q3+1.5×IQR
Mean: x̄ = Σxᵢ / N
Population SD: σ = √(Σ(xᵢ−x̄)²/N)
Sample SD: s = √(Σ(xᵢ−x̄)²/(N−1))
IQR = Q3 − Q1
Outlier if: x < Q1−1.5×IQR or x > Q3+1.5×IQR