Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-random-variables-326-en_uva-random-variables-326-en
    nameuva-random-variables-326-en
    sectionProbability/Elementary Probability/Random variables
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.79
    p-value0.8205

    Question

    A sample of 200 people are asked for a prediction of the outcome of the European Cup soccer match Netherlands-Germany (win for the Netherlands, draw, loss for the Netherlands). The gender gender of the respondent is also noted. The results are shown in cross tabulation below:

    ——- ——- ———— ——— —– Win Draw Draw Loss Male 40 30 50 120 Woman 40 10 30 80 80 40 80 200 ——- ——- ———— ——— —–

    In this sample were 120 men and 80 women; 80 of them predicted a win for the Dutch national team, 40 a draw and 80 loss. If gender and prediction were independent, how many men predicting a win would you expect based on these numbers?


    1. FALSE: 24
    2. FALSE: 40
    3. TRUE: 48
    4. FALSE: 60

    1. 24:Incorrect
    2. 40: Incorrect
    3. 48: Correct
    4. 60: Incorrect