Full descriptive statistics suite. Enter your data to get mean, median, mode, variance, standard deviation, quartiles, outliers, and z-scores for each value.
Enter data and press Calculate
| Statistic | Value | Statistic | Value |
|---|
| # | Value | Deviation (x−μ) | Z-Score | Status |
|---|
Descriptive statistics summarise the main features of a dataset without drawing conclusions about a larger population.
Mean: arithmetic average. Sensitive to outliers.
Median: middle value. Robust to outliers.
Mode: most frequent value. Can have multiple modes.
Range: max − min. Very sensitive to outliers.
IQR: Q3 − Q1. The middle 50% of data.
Standard deviation: average distance from mean.
Outliers are identified using the IQR method: values below Q1−1.5×IQR or above Q3+1.5×IQR are mild outliers; below Q1−3×IQR or above Q3+3×IQR are extreme outliers. Z-scores above |3| also flag potential outliers.