Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-events-760-nl_uva-events-760-nl
    nameuva-events-760-nl
    sectionProbability/Elementary Probability/Events
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeConceptual
    LanguageDutch
    LevelStatistical Literacy
    IRT-Difficulty2.598
    p-value0.4549

    Question

    A={xx=2k,kZ}B={xx=2k+1,kZ}C={xx=2(k+1),kZ}D={xx=2k1,kZ}\begin{aligned} A & = \left \{ x \mid x = 2k, k \in Z \right \}\\ B & = \left \{ x \mid x = 2k + 1, k \in Z \right \}\\ C & = \left \{ x \mid x = 2(k + 1), k \in Z \right \}\\ D & = \left \{ x \mid x = 2k - 1, k \in Z \right \} \end{aligned}

    waarbij Z de verzameling is van alle gehele (positieve en negatieve) getallen is, inclusief 0. Als steeds twee verzamelingen een doorsnede maken, welke leveren dan een lege verzameling op?


    1. TRUE: AB=,AC=,CB=,CD=A \cap B = \varnothing, A \cap C = \varnothing, C \cap B = \varnothing, C \cap D = \varnothing
    2. FALSE: AD=,AC=,CB=,CD=A \cap D = \varnothing, A \cap C = \varnothing, C \cap B = \varnothing, C \cap D = \varnothing
    3. FALSE: AB=,AC=,BD=,CB=A \cap B = \varnothing, A \cap C = \varnothing, B \cap D = \varnothing, C \cap B = \varnothing
    4. FALSE: AB=,AD=,CB=,CD=A \cap B = \varnothing, A \cap D = \varnothing, C \cap B = \varnothing, C \cap D = \varnothing

    1. AB=,AC=,CB=,CD=A \cap B = \varnothing, A \cap C = \varnothing, C \cap B = \varnothing, C \cap D = \varnothing: Correct
    2. AD=,AC=,CB=,CD=A \cap D = \varnothing, A \cap C = \varnothing, C \cap B = \varnothing, C \cap D = \varnothing: Incorrect
    3. AB=,AC=,BD=,CB=A \cap B = \varnothing, A \cap C = \varnothing, B \cap D = \varnothing, C \cap B = \varnothing: Incorrect
    4. AB=,AD=,CB=,CD=A \cap B = \varnothing, A \cap D = \varnothing, C \cap B = \varnothing, C \cap D = \varnothing: Incorrect