A Highcharts bell curve made accessible by the MAIDR Highcharts adapter. Click on the chart and use left and right arrow keys to move along the curve. Two layers are read: the fitted curve, and the observations it was fitted to. The curve is announced as a smooth rather than a line, because its points are not measurements — Highcharts evaluates the fitted distribution wherever it chooses to, so the number of them is a drawing setting rather than a sample size.