Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-multiplication-rule-721-en_uva-multiplication-rule-721-en
    nameuva-multiplication-rule-721-en
    sectionProbability/Elementary Probability/General Rules/Multiplication rule
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    29% of Internet users sometimes download movies, 67% of downloaders do not care if they are copyrighted. Suppose A = {internet users who download movies}; B = {downloaders who don’t care about copyright} Then how likely is it that we will randomly choose an Internet user who downloads movies when he doesn’t care care whether they are copyrighted?


    1. TRUE: 0,19
    2. FALSE: 0,29
    3. FALSE: 0,67
    4. FALSE: 0.96

    1. 0.19: Correct
    2. 0.29: Incorrect
    3. 0.67: Incorrect
    4. 0.96: Incorrect