Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-independent-events-477-en_uva-independent-events-477-en
    nameuva-independent-events-477-en
    sectionProbability/Elementary Probability/General Rules/Independent events
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.057
    p-value0.2893

    Question

    A passenger elevator has room for 4 people. The maximum load is 360 kilograms. Suppose the weights in a certain population are are normally distributed according to N(80, 10²). What is the probability that 4 persons, whose weights are independent, will together overload the elevator overload the elevator?


    1. FALSE: 0.00063
    2. TRUE: 0.0228
    3. FALSE: 0.0252
    4. FALSE: 0.1554

    1. 0.00063: Incorrect
    2. 0.0228: Correct
    3. 0.0252: Incorrect
    4. 0.1554: Incorrect