Bell curve, mean, sigma lines and quantiles
Compare the real distribution with the normal curve it would follow, and read the key values straight from the chart.
- Bell curve fitted to the data, in the colour you choose.
- Mean line and ±1, 2 or 3 standard-deviation lines with values.
- As many quantile markers as you need, for example P50, P75 and P90.
- Mean and standard deviation shown under the chart title.










