Control reports visualize data over time using standard
deviations to show statistical likelihood and identify outliers.
Control reports display data as a series of connected points. The blue line at the center of
the report is drawn at the mean. Upper and lower control limits, represented by red lines,
indicate the thresholds at which activity is considered statistically unlikely. If the process
is in control, all points are plotted within the control limits. You may want to investigate
any activity outside these limits.
When accessibility is enabled, this visualization includes a
report that screen readers can interpret. For more information, see Enabling accessibility
Note: The mean is calculated by taking a sum of the data points on the Data
Points line and dividing by the number of points. These values depend on the
aggregation (Count, Average, Sum, or Count Distinct). This mean can differ from averages in other
reports based on the same data if the other reports use different aggregations. For example, the
mean number of incidents (Count) per month over a period is different from
the mean Average duration of those same incidents.