Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-conditional-probability-960-en_uva-conditional-probability-960-en
    nameuva-conditional-probability-960-en
    sectionProbability/Elementary Probability/Conditional probability
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.841
    p-value0.8092

    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, what is the probability that you will choose a second left-handed student, given that the first student is also left-handed?


    1. FALSE: 1/30
    2. FALSE: 2/30
    3. FALSE: 1/29
    4. TRUE: 2/29

    1. 1/30: Incorrect
    2. 2/30: Incorrect
    3. 1/29: Incorrect
    4. 2/29: Correct