Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-general-rules-1114-en_uva-general-rules-1114-en
    nameuva-general-rules-1114-en
    sectionProbability/Elementary Probability/General Rules
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2.579
    p-value0.4575

    Question

    Daan and Marieke plan to take a cruise together. But they live in different cities in the US. The cruise leaves from New York. They need to fly to New York and arrive at the ship on time. According to their itinerary, the probability that Daan’s flight will be on time is 65%, and for Marieke’s flight the probability is 75%. We assume that the events are independent of each other. What is then the probability that one of them will arrive on time?


    1. FALSE: 0,15
    2. FALSE: 0,49
    3. FALSE: 0,75
    4. TRUE: 0,91

    1. 0.15: Incorrect
    2. 0.49: Incorrect
    3. 0.75: Incorrect
    4. 0.91: Correct