Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-random-variables-285-en_uva-random-variables-285-en
    nameuva-random-variables-285-en
    sectionProbability/Elementary Probability/Random variables
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.39
    p-value0.87

    Question

    The cross table below shows how two Utrecht constituencies voted voted during the last referendum on the European Constitution: for, against or blank.

    —————- —— ——- ——– For Against Blank Electoral district 1 183 161 12 Electoral district 2 212 228 16 Total 395 398 28 —————- —— ——- ——–

    If we randomly choose one from these 812 voters, chances are that it is someone from district 1, and that they voted against the Constitution, is equal to


    1. TRUE: 0.2
    2. FALSE: 0.21
    3. FALSE: 0.45
    4. FALSE: 0.7

    1. 0.2: Correct
    2. 0.21: Incorrect
    3. 0.45: Incorrect
    4. 0.7: Incorrect