Showing Cumulative Histograms

The cumulative option adds each bucket's count or frequency to the running total, so that the right-most bucket reports the total count or 1 (100%), depending on whether the normalized histogram option is active.

To turn on the cumulative option on a histogram, navigate to the Basic menu, and select the Cumulative histogram option.

changing to cumulative histogram

Notice that the difference in the vertical axes between the upper and the lower images; in the lower image, the accumulated values approach 1 on the right side of the graph..

histogram with cumulative distribution