This tool lets you create a custom probability distribution by simply drawing a curve. The height of the curve at any point represents how likely values are in that region—taller areas mean ... higher probability. For example, if you draw a bell-shaped curve, it will behave like a normal distribution, with most values clustered around the center. If your curve is skewed—higher on one side and stretching out on the other—the distribution will reflect that, showing that extreme values are more likely in the direction of the longer tail. Details on the empirical distribution