Figure 20
A line graph titled What-if Sensitivity (RF): vary Evaluating. The horizontal axis is labeled Evaluating and ranges from 0 to 10. The vertical axis is labeled Predicted Student Presence and ranges from 0 to 500. The graph includes three lines representing different roles: Poster, Observer, and Non-Member. The Poster line is blue and remains constant at around 50 predicted student presence. The Observer line is orange and remains constant at around 500 predicted student presence. The Non-Member line is green and remains constant at around 450 predicted student presence.Sensitivity analysis: varying the second top feature (evaluating) while holding others fixed