Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-general-rules-1158-en_uva-general-rules-1158-en
    nameuva-general-rules-1158-en
    sectionProbability/Elementary Probability/General Rules
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Suppose that if rain is expected the probability is 60% that it will will actually rain. If no rain is expected the probability is 20% that it will rain. Rain is expected for 10% of the days of the next month. What is the probability that it will rain?


    1. FALSE: 0,06
    2. FALSE: 0,12
    3. TRUE: 0,24
    4. FALSE: 0,80

    1. 0.06: Incorrect
    2. 0.12: Incorrect
    3. 0.24: Correct
    4. 0.80: Incorrect