Descriptive statistics

List of numbers → mean, median, mode, σ, quartiles

Numbers (space or comma separated)

The mean is sensitive to outliers — the median is more robust (salaries: the mean is higher due to top earners). σ is the average deviation from the mean; 68% of data falls within ±1σ for a normal distribution. Sample σ divides by (n−1), population by n.

Statistics

n
8
Mean
5
Median
4.5
Mode
4
σ (sample)
2.138
min / max
2 / 9
Q1 / Q3
4 / 5.5
Range
7