Class 11 Probability axiomatic approach par based hai — sample space, events aur basic probability laws. Yahan aapko is chapter ke sabse important formulas aur quick revision points free milte hain — NCERT/CBSE syllabus ke hisaab se, boards aur JEE/NEET dono ke liye.
Important Formulas & Concepts — Probability
- P(E) = favourable/total outcomes
- 0 ≤ P(E) ≤ 1; P(S) = 1
- P(A∪B) = P(A) + P(B) − P(A∩B)
- P(A′) = 1 − P(A)
- Mutually exclusive: P(A∩B) = 0
- P(A−B) = P(A) − P(A∩B)
- Exhaustive events: union = S
- Cards: 52 = 26 red + 26 black; 4 suits × 13
Quick Revision Points
- Sample space likhna pehla step hai (dice 36, coins 2ⁿ)
- “At least one” = 1 − P(none)
- Cards ke standard counts rato (kings 4, face cards 12)
- P&C ka use bade sample spaces mein hoga
- Class 12 mein conditional probability isi par banegi
📘 Complete Visual Notes + Formula Sheet PDF
Ye sirf ek quick preview hai. Pura chapter — colour-coded mind-maps, saare derivations, solved formula sheet — instant PDF download.
Get Probability Notes — ₹29
Full Class 11 Maths bundle ₹99 →
FAQ
Probability tough kyun lagti hai?
Sample space galat banta hai — PDF mein dice/coins/cards ke ready spaces diye hain.
At least one wale questions?
Complement se karo: 1 − P(none) — sabse fast method.
Explore more: free sample notes, free calculators aur interactive simulators.