Class 12 Mathematics: Probability Formulas (PDF) — All Important Formulas Free
Free class 12 mathematics: probability formulas — all 7 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No signup.
TL;DR: Free class 12 mathematics: probability formulas — all 7 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No si…
Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated
All Probability formulas for Class 12 Mathematics (CBSE / NCERT) on one page — fast revision for board exams, JEE & NEET. 100% free, no login, download as PDF.
Probability — Key Formulas
| Formula | Expression |
|---|---|
| Basic Probability | P(A) = n(A)/n(S) |
| Addition Rule | P(A∪B) = P(A) + P(B) − P(A∩B) |
| Multiplication Rule | P(A∩B) = P(A) × P(B|A) |
| Conditional Probability | P(A|B) = P(A∩B)/P(B) |
| Bayes' Theorem | P(A|B) = P(B|A) × P(A)/P(B) |
| Binomial Probability | P(X=r) = C(n,r) × p^r × q^(n−r) |
| Expected Value | E(X) = Σ x_i × P(x_i) |
FAQs
What are the most important Probability formulas for Class 12?
This sheet lists all 7 key Probability formulas from the Class 12 Mathematics 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.