PPrincipia Statistica

Interactive Figures

Thought Experiments in Evidence

Each figure is designed as a manipulable argument. Change an assumption and watch the interpretation move.

Figure 1.1

The Three Sources of Uncertainty

Adjust variation, ignorance, and measurement error to see how uncertainty enters an observed outcome.

Figure 1.2

Sample Size and the Illusion of Certainty

Change the sample size and observe how small samples can create false confidence.

Figure 1.3

Signal Hidden Inside Noise

Reveal or hide the underlying signal inside noisy observations.

Figure 1.4

Data Is Not Understanding

Toggle context, labels, groups, and hidden variables to see how interpretation changes.

Figure 1.5

The Cost of Acting Under Uncertainty

Change the cost of false alarms and missed detections to see how optimal decisions move.