Sensitivity of a Variable
Sensitivity analysis determines how much an output is expected to change due to changes in a variable or parameter. In this case, the output (y-axis) decreases exponentially with an increase in the input (x-axis). This is mapped out for each input.
Source
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"All sizes | exponential curve data | Flickr - Photo Sharing!."
http://www.flickr.com/photos/rlodan01/4387091613/sizes/m/in/photostream/
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