Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-multiplication-rule-663-en_uva-multiplication-rule-663-en
    nameuva-multiplication-rule-663-en
    sectionProbability/Elementary Probability/General Rules/Multiplication rule
    typeschoice
    solutionFALSE, FALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    A first vase contains two white and three black balls, a second vase contains three white and one black. If you randomly choose one of the two vases and you draw one ball from it, what is the probability that this ball is white?


    1. FALSE: 3/4
    2. FALSE: 3/5
    3. FALSE: 5/9
    4. FALSE: 3/10
    5. TRUE: 23/40

    1. 3/4: Incorrect
    2. 3/5: Incorrect
    3. 5/9: Incorrect
    4. 3/10: Incorrect
    5. 23/40: Correct