Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-general-rules-956-en_uva-general-rules-956-en
    nameuva-general-rules-956-en
    sectionProbability/Elementary Probability/General Rules
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.934
    p-value0.7983

    Question

    A crime has been committed, and it is known that the criminal is part is part of a population of 6 million. Through research, the police know that only one person in a million has DNA that matches the DNA of the perpetrator. What then is the probability that a person with the same DNA as the perpetrator, is innocent?


    1. FALSE: 1/6,000,000
    2. FALSE: 1/1,000,000
    3. FALSE: 1/6
    4. TRUE: 5/6

    1. 1/6,000,000: Incorrect
    2. 1/1,000,000: Incorrect
    3. 1/6: Incorrect
    4. 5/6: Correct