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IB Mathematics: Applications and Interpretation HL · 13.1: Probability · 13.1.5

Combined and mutually exclusive events Problem set B Answers

Skills

    1. (a) 0.3
    2. (b) 0.1
    1. (a) 0.65
    2. (b) 0.8
    1. (a) 0.55
    2. (b) 0.4
    1. (a) 0.46
    2. (b) \(\frac{17}{36}\)

  5. Yes: P(A ∩ B) = 0

In context

    1. (a) 0.53
    2. (b) 0.47
    1. (a) 0.16
    2. (b) 0.36
    1. (a) 0.75
    2. (b) 0.25
    1. (a) 0.59
    2. (b) 0.29

Stretch

    1. (a) x = 0.15
    2. (b) P(A) = 0.15, P(B) = 0.59
    1. (a) y = 0.33
    2. (b) P(B) = 0.54
    3. (c) Both give 0.81

jmaths.xyz · AI HL · 13.1.5 Combined events and mutually exclusive events