Solved Notes Unit 13: Probability (PCTB / PECTAA) – Class 9th Part 1 SSC Matric New Book 2025-2026

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Exercise 13.1 – Probability

  1. Dice: L,M,N,O,P,U
    P(consonant) = 4/6 = 2/3
  2. Two fair dice (36 outcomes)
    (i) P(sum ≥ 4) = 33/36 = 11/12
    (ii) P(product 5 to 10) = 11/36
    (iii) P(difference = 4) = 4/36 = 1/9

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