Bayesian Earth Surface Estimator

Explore how Bayesian inference can estimate the proportion of Earth's surface covered by land vs water. Each random point updates our belief using the Beta distribution as a conjugate prior.

Prior Distribution

Interactive Globe

Posterior Distribution

100
Bayesian Update Parameters
Prior α (water)
1
Prior β (land)
1
Water Points
0
Land Points
0
Posterior α (water)
1
Posterior β (land)
1
50.0%
Water Coverage
50.0%
Land Coverage
0
Total Samples