Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-random-variables-118-en_uva-random-variables-118-en
    nameuva-random-variables-118-en
    sectionProbability/Elementary Probability/Random variables
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2.703
    p-value0.4373

    Question

    Sixty percent of the Dutch people regularly spread peanut butter on bread. Suppose 80% of them die before the age of 75. death. Among non-peanut butter users, only 40% do. How big is then the probability that someone who dies before age 75e is not peanut butter user?


    1. TRUE: 0.25
    2. FALSE: 0.32
    3. FALSE: 0.60

    1. 0.25: Correct
    2. 0.32: Incorrect
    3. 0.60: Incorrect