To view the Standard Deviation that AppDynamics has calculated for any metric, all you need to do is:
1. Open the metric you are interested in within the Metric Browser and, from the top right menu, select a Baseline to view:
2. Once selected, a new tick-box will be displayed under the time series graph called "Shade". Tick that.
3. From the Configure menu near the top left, simply select the Standard Deviation range you are interested in from the options available:
The selected Standard Deviation range will now be displayed on the time series graph: