cyberneticlibrary

Understand probability fundamentals

probability-theoryskillsetup L164
Tibsfox/gsd-skill-creator
What it does

Apply mathematical foundations of uncertainty—sample spaces, events, Bayes' theorem, independence, distributions

Best for

Building rigorous statistical reasoning from first principles when intuitive probability reasoning fails

Inputs
  • · event space definition
  • · probability assignments or mass functions
Outputs
  • · computed probabilities
  • · conditional probabilities
  • · Bayes' theorem applications
Requires
  • · numpy
  • · scipy.stats
Preconditions

Event space finite or countable; probabilities sum to 1; independence properly justified

Failure modes

Conditional probability undefined if P(A)=0; independence assumption violated causes wrong inference

Trust signals
  • · Covers axioms, Bayes' theorem, independence, random variables
  • · Foundation for both Bayesian and frequentist inference