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📊 Statistics Calculator
Enter Dataset
Enter numbers separated by commas, spaces, newlines or tabs (minimum 2 values required)
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Data Type
Sample Data (divide by n-1 for std/variance)
Population Data (divide by n for std/variance)
Precision (decimal places)
Calculate These Statistics
Basic Statistics (mean, median, mode, range)
Dispersion (std dev, variance, IQR)
Distribution (skewness, kurtosis)
Quantiles (quartiles, percentiles)
Load Sample Data
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Dataset Summary
Number of Values (n)
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Sum
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Minimum Value
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Maximum Value
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Basic Statistics
Arithmetic Mean
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Median (Q2)
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Mode
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Range (Max-Min)
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Geometric Mean
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Harmonic Mean
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Dispersion Statistics
Variance
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Standard Deviation
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Coefficient of Variation
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Interquartile Range (IQR)
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First Quartile (Q1)
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Third Quartile (Q3)
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Distribution Statistics
Skewness
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Kurtosis
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Mean Absolute Deviation
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Median Absolute Deviation
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Quantiles & Percentiles
25th Percentile (Q1)
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50th Percentile (Median)
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75th Percentile (Q3)
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90th Percentile
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Notes:
Sample standard deviation uses n-1 (Bessel's correction) for unbiased estimation
Population standard deviation uses n (no correction)
Skewness: positive = right-skewed, negative = left-skewed, 0 = symmetric
Kurtosis: positive = leptokurtic (sharp peak), negative = platykurtic (flat peak), 0 = mesokurtic (normal)
Mode is the most frequently occurring value (may have multiple modes)