Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-addition-rule-930-en_uva-addition-rule-930-en
    nameuva-addition-rule-930-en
    sectionProbability/Elementary Probability/General Rules/Addition rule
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Suppose the independent probability that three individuals A, B and C will be alive in 30 years are still alive is equal to 0.4; 0.3 and 0.5, respectively. What then is the probability that in 30 years only one of the three will be alive?


    1. FALSE: 0,06
    2. FALSE: 0,09
    3. FALSE: 0,21
    4. TRUE: 0,44

    1. 0.06: Incorrect
    2. 0.09: Incorrect
    3. 0.21: Incorrect
    4. 0.44: Correct