Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-conditional-probability-961-en_uva-conditional-probability-961-en
    nameuva-conditional-probability-961-en
    sectionProbability/Elementary Probability/Conditional probability
    typeschoice
    solutionFALSE, FALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.831
    p-value0.8118

    Question

    In a class there are 30 students, three of whom are left-handed. Suppose that you want to randomly choose two of the 30 students sequentially, What is then the probability that two left-handed students will be chosen?


    1. FALSE: 1/30
    2. FALSE: 2/30
    3. FALSE: 1/100
    4. FALSE: 2/100
    5. TRUE: 1/145

    1. 1/30: Incorrect
    2. 2/30: Incorrect
    3. 1/100: Incorrect
    4. 2/100: Incorrect
    5. 1/145: Correct