Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-multiplication-rule-722-en_uva-multiplication-rule-722-en
    nameuva-multiplication-rule-722-en
    sectionProbability/Elementary Probability/General Rules/Multiplication rule
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    29% of Internet users sometimes download movies, 67% of downloaders don’t care if they are copyrighted. If we want to know the probability that we randomly choose someone who downloads movies when he doesn’t don’t care if they are copyrighted, which rule can you use to calculate this probability?


    1. FALSE: General addition rule
    2. FALSE: Complement rule
    3. FALSE: Addition rule
    4. TRUE: Product rule

    1. General addition rule: Incorrect
    2. Complement rule: Incorrect
    3. Addition rule: Incorrect
    4. Product rule: Correct