Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-expected-value-1048-en_uva-expected-value-1048-en
    nameuva-expected-value-1048-en
    sectionProbability/Elementary Probability/Random variables/Expected value
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.266
    p-value0.8767

    Question

    A lottery sells 10,000 lottery tickets. Each ticket costs 1 euro, but if you wins, you get a motorcycle worth 5,000 euros. If you buy three tickets buy, what is the expected profit (or loss)?


    1. FALSE: 1 euro
    2. TRUE: 1.5 euros
    3. FALSE: 2 euros
    4. FALSE: 3.5 euros

    1. 1 euro: Incorrect
    2. 1.5 euros: Correct
    3. 2 euros: Incorrect
    4. 3.5 euros: Incorrect