Anchoring a Grabber and Entering Certainty Directly

You can also anchor a certainty grabber and type the certainty level. Then, Crystal Ball moves the free grabber to correspond to the value range for the level.

  To anchor a certainty grabber:

  1. Move the lowest-value (left) certainty grabber until the certainty minimum value is $0.0.

    The certainty grabber turns to a lighter color and is considered anchored.

  2. Type 75 in the Certainty field.

  3. Press Enter.

    Crystal Ball moves the free certainty grabber toward the anchored certainty grabber to include 75% of the values as in Figure 25, Certainty Level: 75% from Lowest-value (Left) Certainty Grabber.

    If both grabbers are free, the distribution is centered on the median.

    Figure 25. Certainty Level: 75% from Lowest-value (Left) Certainty Grabber

    This figure displays the maximum certainty level for which 75% is displayed between the certainty grabbers.

You also can cross over the certainty grabbers to determine the certainty level for the two tails (ends).

You can determine the certainty level for specific value ranges at any time, either during or after the simulation.