Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-multiplication-rule-959-en_uva-multiplication-rule-959-en
    nameuva-multiplication-rule-959-en
    sectionProbability/Elementary Probability/General Rules/Multiplication rule
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    In a class there are 30 students, three of whom are left-handed. Suppose that the teacher simultaneously randomly chooses two students. What is the probability that two left-handed students will be chosen?


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

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