Advanced Statistics Calculator

Enter Your Dataset

Input your numbers in the text area using any of these formats:

• Comma-separated: 5, 10, 15, 20
• Space-separated: 5 10 15 20
• New line-separated for better organization
• Supports decimals, negatives, and large datasets

Tip: Use the example buttons to quickly test different datasets.

Calculate Comprehensive Statistics

Click "Calculate Statistics" to compute:

• Central Tendency: Mean, Median, Mode
• Dispersion: Variance, Standard Deviation
• Distribution: Quartiles, IQR, Range
• Basic Stats: Sum, Count, Min, Max

Note: For even-numbered datasets, median is the average of two middle values.

Understand Quartiles & IQR

Quartiles divide your data into four equal parts:

• Q1 (First Quartile): 25th percentile
• Q2 (Second Quartile): Median (50th percentile)
• Q3 (Third Quartile): 75th percentile
• IQR (Interquartile Range): Q3 - Q1

Pro Tip: IQR helps identify outliers in your data.

Interpret Variance & Standard Deviation

These measure data dispersion:

• Variance: Average of squared differences from mean
• Standard Deviation: Square root of variance
• Higher values indicate more spread in data
• Lower values indicate data points are closer to mean

Review Frequency Distribution

Check how often each value appears:

• Identifies the most common values
• Helps understand data distribution shape
• Useful for identifying patterns and outliers

Note: The frequency list is sorted by occurrence count.

Download or Reset

After analysis:

• Download comprehensive results as a text file
• Reset to analyze a new dataset
• Compare different datasets

Pro Tip: Use downloaded results for reports or further analysis.