What’s on the Probability Axioms poster
9 entries in 2 groups.
Three axioms. Everything else is a theorem.
- The axioms: P(A) ≥ 0 for every event A, P(Ω) = 1 for the sample space Ω, Disjoint A,…
- Immediate consequences: P(A') = 1 − P(A), P(∅) = 0, A ⊆ B ⇒ P(A) ≤ P(B), P(A ∪ B) = P…
P(A) = 0 does not mean impossible for a continuous variable: every individual point has probability exactly zero.
Questions about the Probability Axioms poster
- What’s on the Probability Axioms poster?
- 9 entries in 2 groups. Three axioms. Everything else is a theorem. The axioms: P(A) ≥ 0 for every event A, P(Ω) = 1 for the sample space Ω, Disjoint A,…; Immediate consequences: P(A') = 1 − P(A), P(∅) = 0, A ⊆ B ⇒ P(A) ≤ P(B), P(A ∪ B) = P…. P(A) = 0 does not mean impossible for a continuous variable: every individual point has probability exactly zero.
- Who is the Probability Axioms poster for?
- Probability Axioms belongs to the Mathematics section rather than to a school year, because math is not something one grade owns. Anyone learning probability & statistics can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Probability Axioms poster?
- When a probability argument goes wrong, it is usually an axiom that was skipped. A wall chart earns its place by being glanceable from where the work is happening, so Probability Axioms belongs on the wall where that math work actually happens, within glancing distance, rather than filed away.
- What other posters go with Probability Axioms?
- Bayes' Theorem, Central Limit Theorem and Conditional Probability sit alongside Probability Axioms in the Mathematics section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Bayes' TheoremCentral Limit TheoremConditional Probability
- Is the Probability Axioms poster free to download and print?
- Yes. Probability Axioms downloads as a free PDF with no account, no email and no watermark, like everything else in the Mathematics section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Probability Axioms poster print at?
- Probability Axioms is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Probability Axioms loses nothing.Printing guide
Related posters
Charts that sit alongside Probability Axioms on the same wall.
Browse every Mathematics poster, or start from the full catalogue.