Statistics Calculator
Compute comprehensive statistics from a dataset
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About Statistics
Central Tendency
- Mean: Sum / count
- Median: Middle value when sorted
- Mode: Most frequent value(s)
- Geometric Mean: ⁿ√(x₁×x₂×…×xₙ)
Spread
- Variance (pop): Average squared deviation
- Variance (sample): Divided by (n−1) for unbiased estimate
- Std Dev: √Variance
- IQR: Q3 − Q1 (middle 50%)
Percentiles
Quartiles divide sorted data into 4 equal parts. Q1 = 25th percentile, Q2 = median = 50th, Q3 = 75th. Uses linear interpolation between data points.