Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-951-en_uva-elementary-probability-951-en
    nameuva-elementary-probability-951-en
    sectionProbability/Elementary Probability
    typenum
    solution0.025
    tolerance0
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.826
    p-value0.8128

    Question

    In a class there are 40 students. Each time, the teacher randomly chooses one student to answer one question and then the teacher puts the chosen name not back. There are a total of three questions. What is then the probability that Marja is chosen to answer the first question?


    Solution

    The correct answer is: 0.025