Probability Lab

Problem

Random problem

Your own problem

Mode

In Practice, answer with

The method

As in §5.4 of the book:

Check what your goal is and note what’s involved in it.
Check what you already have, and note anything that involves the same elements.
Find the axioms, definitions and theorems about the kinds of things you’re looking for or already have.
If you have everything else in one of them, solve for your goal.
If not, repeat with what you’re missing as your new goal.

Each step uses one rule. Pick it, fill in φ and ψ (type, or click a formula in the list or the goal), and type the value of the one quantity you don’t have yet. Commutative variants are the same: P(G ∧ F) is P(F ∧ G).

Formulas: ~ or ¬, & or ∧, v or ∨. Probabilities can be typed as fractions (3/10), decimals (0.3) or percentages (30%).

Hint shows one more step of the method each time you click it.

Rule

φ =

ψ =

Probability Lab

1. What did you learn?

2. Prior and likelihoods

3. Posterior

Eikosogram Studio

Probability Eikosogram