Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-conditional-probability-770-en_uva-conditional-probability-770-en
    nameuva-conditional-probability-770-en
    sectionProbability/Elementary Probability/Conditional probability
    typeschoice
    solutionFALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Of a group of respondents, 20% wear glasses and drive regularly (more often more than three times a week), 40% wear glasses but do not drive regularly drive a car, 30% do not have glasses but do drive a car regularly and 10% does not wear glasses and does not drive a car regularly. What is the probability that a randomly drawn person drives car given that this person drives a wears glasses, in other words, what is the probability P(car=yes|glasses=yes)?


    1. FALSE: 0.2
    2. TRUE: 0.33
    3. FALSE: 0,67

    1. 0.2: Incorrect
    2. 0.33: Correct
    3. 0.67: Incorrect