Statistics
Descriptive statistics with dot plots and box plots
Mean = Σx / n | σ² = Σ(x − μ)² / n
Count5Sum75Mean15Median15ModeNo modeMin5Max25Range20Q17.5Q322.5IQR15Population variance50Population std dev7.0710678Sample variance62.5Sample std dev7.9056942
About this calculator
The Statistics Calculator computes descriptive statistics for any list of numbers — mean, median, mode, standard deviation, variance, quartiles, and more. Enter up to 100 values and instantly see a dot plot and box plot that make your data easy to understand. Useful for school, research, and everyday data analysis.
Common examples
- Data: 2, 4, 4, 4, 5, 5, 7, 9 → mean = 5, median = 4.5, mode = 4
- Data: 10, 20, 30, 40, 50 → mean = 30, range = 40, std dev ≈ 14.14
- Data: 1, 1, 2, 3, 5, 8, 13 → Q1 = 1, median = 3, Q3 = 8, IQR = 7
- Data: 100, 100, 100 → mean = 100, std dev = 0, mode = 100
- Data: 5, 10, 15, 100 → mean = 32.5, median = 12.5, 100 is a potential outlier