Statistics Calculator

Calculate descriptive statistics for any numerical dataset: Mean (Average), Median, Mode, Sample & Population Standard Deviation, Variance, Range, Minimum, Maximum, and Quartiles (Q1, Q3, IQR).

Why Use This Tool?

• Data Analysis & Research: Calculate central tendency and dispersion metrics for data science and research papers.
• Quality Control & Testing: Measure process variance and standard deviation in manufacturing or software metrics.
• Student Statistics Math: Verify statistics homework calculations instantly.

How to Use

1. Paste comma, space, or line-separated numbers into the data field.
2. Select Sample or Population mode.
3. View calculated Mean, Median, Mode, Variance, and Standard Deviation.

Real Working Example

Input:

Dataset: 12, 15, 18, 22, 22, 25, 30, 35

Output Result:

Count: 8 | Mean: 22.375 | Median: 22.0 | Mode: 22 | Sample Std Dev: 7.21 | Range: 23

Important Technical Details & Formulas

• Statistical Formulas: Computes Sample Variance `s² = Σ(x - x̄)² / (n - 1)` and Population Variance `σ² = Σ(x - x̄)² / n`.
• Quartile Method: Computes Q1 (25th percentile), Q3 (75th percentile), and Interquartile Range (IQR).
• Client-Side Engine: Fast calculation in local browser memory.

Related Mathematics & Financial Tools

• Math Evaluator: Evaluate complex mathematical expressions.
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