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Gyaan Maths
CBSE · Class 6-12
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CBSE Maths · Class 9

Chapter 7: The Mathematics of Maybe: Introduction to Probability

Name: ________________________
Date: ______________
Marks: ____ / 6

Chance, experimental probability, and simple events.

Questions

  1. PP(getting T on coin).
  2. PP(6 on die).
  3. PP(prime on die).
  4. PP(sure event).
  5. Bag: 3 red, 2 blue. PP(red).
  6. PP(ace from 52 cards).

Extra Practice (Optional)

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Answer Key (For Teachers)

  1. Answer: 12\tfrac 12
    Working: 1/2.
  2. Answer: 16\tfrac 16
    Working: 1 out of 6.
  3. Answer: 12\tfrac 12
    Working: Primes 2,3,5.
  4. Answer: 11
    Working: Always.
  5. Answer: 35\tfrac 35
    Working: 3/53/5.
  6. Answer: 113\tfrac{1}{13}
    Working: 4/524/52.
Gyaan Maths · CBSE Class 9 · Chapter 7
Gyaan Maths — CBSE Class 6-12, built for board-toppers.
v1.1 · Sept 2026