Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-multiplication-rule-1117-en_uva-multiplication-rule-1117-en
    nameuva-multiplication-rule-1117-en
    sectionProbability/Elementary Probability/General Rules/Multiplication rule
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    A club organizes a raffle. Of the 40 members, 10 are close friends of the president. The latter has to draw two random names sequentially from a box as winners, and the chosen name is not put back. What is then the probability that both winners are not close friends of the president?


    1. FALSE: 0,063
    2. FALSE: 0,250
    3. TRUE: 0,558
    4. FALSE: 0,560

    1. 0.063: Incorrect
    2. 0.250: Incorrect
    3. 0,558: Correct
    4. 0.560: Incorrect