Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-rules-for-expected-values-922-nl_uva-rules-for-expected-values-922-nl
    nameuva-rules-for-expected-values-922-nl
    sectionProbability/Elementary Probability/Random variables/Rules for expected values
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageDutch
    LevelStatistical Literacy
    IRT-Difficulty3.867
    p-value0.146

    Question

    Stel de kans dat een studente het vak Scheikunde afmaakt is 1/3 en Engels is 4/9. De kans dat zij ofwel Scheikunde ofwel Engels (of beide) zal afmaken is 11/15. Wat is dan de kans dat zij beide vakken zal voltooien?


    1. FALSE: 33/45
    2. FALSE: 24/15
    3. FALSE: 11/45
    4. TRUE: 2/45

    1. 33/45: Incorrect
    2. 24/15: Incorrect
    3. 11/45: Incorrect
    4. 2/45: Correct