Advanced Data Analysis Calculator
Compute Average, Median, Mode, Range, Variance, Standard Deviation, Z-Scores, Percentiles, Quartiles, and detect outliers with interactive chart visualization.
How to use: Enter your data in the table below. Add more rows as needed, or use sample data to get started.
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Formula Preview: Enter data to see calculation formulas.
Analysis Results
Dataset: Unnamed Dataset
Data Points: 0
Analyzed: Just now
Average (Mean)
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Median
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Mode
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Range
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Variance
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Standard Deviation
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Quartiles
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Outliers
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Percentiles (Top 10)
Z-Scores (Top 10)
Data Visualization
Outliers are shown in red. Hover over points for details.
Interpretation Guide
Standard Deviation
Measures how spread out the data is. Higher values indicate more variability.
Z-Score
Shows how many standard deviations a value is from the mean. Positive = above mean, negative = below mean.
Outliers
Values significantly different from others. May indicate errors or special cases worth investigating.
Quartiles
Q1 (25%), Q2 (median), Q3 (75%) divide data into four equal parts. IQR = Q3 - Q1.