Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-addition-rule-762-en_uva-addition-rule-762-en
    nameuva-addition-rule-762-en
    sectionProbability/Elementary Probability/General Rules/Addition rule
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.061
    p-value0.8865

    Question

    The probability distribution of blood groups in the Netherlands is as follows: P(O) = 0.38; P(B) = 0.33; P(A) = 0.20; P(AB) = 0.09. What is the probability of a randomly selected Dutch blood donor with blood group A or blood group AB?


    1. FALSE: 0,018
    2. FALSE: 0,205
    3. TRUE: 0,290
    4. FALSE: 0,317

    1. 0,018: Incorrect
    2. 0.205: Incorrect
    3. 0.290: Correct
    4. 0.317: Incorrect