Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-expected-value-1273-en_uva-expected-value-1273-en
    nameuva-expected-value-1273-en
    sectionProbability/Elementary Probability/Random variables/Expected value
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.421
    p-value0.228

    Question

    Out of every 100 people, 20 will be randomly chosen who will each win a €5 gift certificate. What then is the standard deviation of the amount won amount for one person?


    1. FALSE: € 0,45
    2. TRUE: € 2,00
    3. FALSE: € 2,45
    4. FALSE: € 4,45

    1. € 0.45: Incorrect
    2. € 2,00: Correct
    3. € 2.45: Incorrect
    4. € 4.45: Incorrect