Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-random-variables-88-en_uva-random-variables-88-en
    nameuva-random-variables-88-en
    sectionProbability/Elementary Probability/Random variables
    typeschoice
    solutionFALSE, TRUE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2.971
    p-value0.4033

    Question

    Of all single people in the Netherlands, 80% have a disposable income of less than 30,000 euros per year. Of the non-single people that is 60%. The Netherlands has 15% single people. What is the probability that someone who has a disposable income of less than 30,000 euros is single?


    1. FALSE: 0.12
    2. TRUE: 0.19
    3. FALSE: 0.7

    1. 0.12: Incorrect
    2. 0.19: Correct
    3. 0.7: Incorrect