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Statistics Calculator

Calculate mean, median, mode, standard deviation, variance, quartiles, and analyze datasets with interactive visualizations and charts.

Data Input

Manual Entry
Generate Random
Upload CSV
Advanced Options
digits
classes

Statistics Results

Data Points: 15
Sorted Data: 12, 15, 18, 22, 25, 28, 32, 35, 40, 42, 45, 50, 55, 60, 65
Data Sum: 584
38.93
Mean (Average)
μ = Σx/n
35
Median
Middle Value
None
Mode
Most Frequent
16.58
Std Deviation
σ = √(Σ(x-μ)²/n)
274.92
Variance
σ² = Σ(x-μ)²/n
53
Range
Max - Min

Five-Number Summary

Min
12
Q1
22
Q2
35
Q3
50
Max
65
Interquartile Range (IQR)
28
Outliers
0
Skewness
0.42

Data Visualizations

Chart Type: Histogram

Frequency Distribution

Class Interval Frequency Relative Frequency Cumulative Frequency Percentage
Enter data to see frequency distribution

Probability Calculator

Probability that X is less than or equal to 40
0.533
Approximately 53.3% of data points

Features of Our Statistics Calculator

Comprehensive Statistics

Calculate mean, median, mode, standard deviation, variance, quartiles, range, IQR, and more with precision.

Interactive Visualizations

Visualize your data with histograms, box plots, scatter plots, and frequency polygons using Chart.js.

Frequency Distribution

Generate complete frequency distribution tables with class intervals, frequencies, and percentages.

Multiple Input Methods

Enter data manually, generate random datasets, or upload CSV files for analysis.

Outlier Detection

Automatically detect outliers using IQR, standard deviation, or Z-score methods.

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All calculations are done locally in your browser. Your data never leaves your computer.