Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-expected-value-1047-en_uva-expected-value-1047-en
    nameuva-expected-value-1047-en
    sectionProbability/Elementary Probability/Random variables/Expected value
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.794
    p-value0.8185

    Question

    John and Martijn play a game together: Martijn rolls a pure die. John must pay to him in the following situations:  5 cents if there are one or two eyes above,‗. 10 cents if there are three or four pips on top,‖ and 20 cents if there are 5 eyes above, and 40 cents if there are 6 eyes above,‖ and  How many cents should Martin pay John before each game begins so that it is an equitable game?


    1. FALSE: 5
    2. TRUE: 15
    3. FALSE: 20
    4. FALSE: 25
    5. FALSE: 30

    1. 5: Incorrect
    2. 15: Correct
    3. 20: Incorrect
    4. 25: Incorrect
    5. 30: Incorrect