Class 12 Maths: Probability Formulas (PDF) — All Important Formulas Free
Free class 12 maths: probability formulas — all 4 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No signup.
TL;DR: Free class 12 maths: probability formulas — all 4 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No signup.
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
All Probability formulas for Class 12 Maths (CBSE / NCERT) on one page — fast revision for board exams, JEE & NEET. 100% free, no login, download as PDF.
Probability — Key Formulas
| Formula | Expression |
|---|---|
| Conditional probability | P(A|B) = P(A ∩ B) / P(B), where P(B) ≠ 0 |
| Multiplication theorem | P(A ∩ B) = P(A) · P(B|A) |
| Independent events | If A and B are independent: P(A ∩ B) = P(A) · P(B) |
| Bayes' theorem (idea) | Updates the probability of a cause given an observed event, using prior probabilities. |
FAQs
What are the most important Probability formulas for Class 12?
This sheet lists all 4 key Probability formulas from the Class 12 Maths CBSE/NCERT syllabus, ready for quick revision.
Is this Probability formula sheet free to download?
Yes — every Syllab.in formula sheet is 100% free, needs no login, and can be saved as a PDF.