Statistics Dashboard
Visualize your data with box plots and histograms. Calculate quartiles, median, mean, and identify outliers.
Data Input
Statistics
| Count (n) | -- |
| Min | -- |
| Q1 | -- |
| Median (Q2) | -- |
| Q3 | -- |
| Max | -- |
| Mean | -- |
| IQR | -- |
| Outliers | -- |
Understanding Box Plots & Histograms
Box Plot (Box-and-Whisker)
- Minimum: Smallest value (excluding outliers)
- Q1: First quartile (25th percentile)
- Median (Q2): Middle value (50th percentile)
- Q3: Third quartile (75th percentile)
- Maximum: Largest value (excluding outliers)
- IQR: Interquartile Range = Q3 - Q1
Outlier Detection
- Lower fence: Q1 - 1.5×IQR
- Upper fence: Q3 + 1.5×IQR
- Values outside fences are outliers
Histogram
- Shows frequency distribution of data
- X-axis: Data values (bins/intervals)
- Y-axis: Frequency (count in each bin)
- Reveals shape: normal, skewed, bimodal
Key Measures
- Mean: Average = Σx / n
- Median: Middle value when sorted
- Range: Max - Min
- Spread: How dispersed the data is
Applications
- Test score analysis
- Quality control
- Market research
- Scientific data analysis
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