Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-749-en_uva-elementary-probability-749-en
    nameuva-elementary-probability-749-en
    sectionProbability/Elementary Probability
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    A box contains one black ball, two red balls, three yellow balls and four green balls. If you blindly take one ball from it, what is the probability that you pick up a red ball?


    1. FALSE: 1/10
    2. TRUE: 1/5
    3. FALSE: 3/10
    4. FALSE: 2/5

    1. 1/10: Incorrect
    2. 1/5: Correct
    3. 3/10: Incorrect
    4. 2/5: Incorrect