The following screenshot shows our Watson Analytics prediction based upon our selected target:

We can see that Watson Analytics has performed its analysis and has determined that the number of illnesses is driven by the Initiator field. This can be clearly seen by examining the gray bullseye, as shown in the following screenshot:

The blue dot (the only dot) shows us that Initiator is a predictor of Number of Illness, with a Predictive Strength of 39.4%. Predictive strength is the measurement used to show the importance of a field in relationship to its ability to help predict an outcome. The higher the predictive strength, the stronger the correlation with what is being predicted.