Descriptive Statistics Dataset Calculator
Processed in your browser
Compute summary metrics including mean, median, mode, standard deviation, variance, skewness, and quartiles from raw numeric data.
12 valid numbers detected
Sum: 320
Central Tendency
Mean (Average)
26.6667
Median (Q2)
25
Mode
25
Geometric Mean
25.3421
Dispersion & Spread
Sample Std Dev (s)
8.2278
Pop. Std Dev (σ)
7.8786
Sample Variance (s²)
67.697
Std Error of Mean (SEM)
2.3751
Quartiles & Extremes
Minimum (Min)
14
1st Quartile (Q1)
20
3rd Quartile (Q3)
33
Interquartile Range (IQR)
13
Distribution Shape
Count (N)
12
Range
28
Skewness
0.315
Kurtosis (Excess)
-0.672
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Direct In-Browser Handoff
Descriptive Statistics & Summary Suite
Chain this tool with complementary private browser utilities for a complete zero-server workflow:
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Helpful Examples
Exam Scores Analysis
Set of 10 student test scores
78, 85, 92, 65, 88, 92, 74, 81, 95, 89How to Use the Descriptive Statistics Dataset Calculator
Comprehensive descriptive statistics engine for analyzing sample and population datasets. Instantly computes central tendency (arithmetic mean, geometric mean, median, mode), dispersion (sample standard deviation, population standard deviation, sample variance, population variance, range, IQR), shape (skewness, kurtosis), and five-number summary quartiles (Q1, Q2, Q3, min, max). Supports comma, whitespace, or newline-delimited inputs with instant copying and summary exporting.
Privacy & Data Processing Notice
No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.
Frequently Asked Questions
What is the difference between sample and population standard deviation?
Sample standard deviation uses Bessel's correction dividing by (n - 1) to provide an unbiased estimator of variance from a sample, while population standard deviation divides by N when the complete dataset of interest is present.
How does the calculator handle multiple modes or no mode?
If every value appears with equal frequency, the calculator reports "No unique mode". If multiple values share the highest frequency, all modes are listed.
Related Utilities
Frequently paired browser tools in Statistics & Data Analysis Tools