Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-706-en_uva-elementary-probability-706-en
    nameuva-elementary-probability-706-en
    sectionProbability/Elementary Probability
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2.865
    p-value0.4193

    Question

    If you flip a pure coin four times, there are 16 possible outcomes. Suppose X is the number of times cross on four tosses. How is the probability that X is equal to 2 (exactly 2 Ks)?


    1. FALSE: 0,0625
    2. FALSE: 0,25
    3. TRUE: 0,375
    4. FALSE: 1

    1. 0.0625: Incorrect
    2. 0.25: Incorrect
    3. 0,375: Correct
    4. 1: Incorrect