ICSE-VIII-Mathematics

23: Probability Class 8 Maths

with Solutions -
  • #5-i
    (a) red ball (ii) not a red ball (iii) (a) white ball.
    Ans : Total number of possible outcomes = 3
    ∴ P(E) = 1/3 (ii) Not a red ball
    Number of favourable outcomes = Green ball + Black Ball
    = 1 + 1 + 2
    ∴ P(E) = 2/3 (iii) A white ball
    Number of favourable outcome = 0
    ∴ P(E) = 0/3
    = 0
  • #5-ii
    not a red ball
    Ans : Not a red ball
    Number of favourable outcomes = Green ball + Black Ball
    = 1 + 1 + 2
    ∴ P(E) = 2/3
  • #5-iii
    (a) white ball.
    Ans : A white ball
    Number of favourable outcome = 0
    ∴ P(E) = 0/3
    = 0