October report erratum

We noticed an error in the Distribution of per-device success rates graph included in the emailed reports for October 2018.
This error primarily affected the graph display by forcing a point of value 0 to be added for each ratio, creating a "spike" effect on the graph.
You can here see an example of such graph, along with the corrected version.  
Faulty version:
Correct version:
We apologize for this error. We updated the online October reports for each institution with the corrected graph.
Administrators can download the corrected version of this report on their institution page under the "Reports" tab.