Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-random-variables-257-en_uva-random-variables-257-en
    nameuva-random-variables-257-en
    sectionProbability/Elementary Probability/Random variables
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.338
    p-value0.2357

    Question

    In a study of differences between nursing and care homes looked at, among other things, the age of the (502) residents in the sample. Age was divided into 5 classes for this purpose. The results are shown in the cross tabulation below:

    —————– ——- ——- ——- ——- —– Frequency 50-64 65-74 75-84 85-94 ≥95 nursing home 4 27 96 108 14 nursing home 0 6 91 129 27 —————– ——- ——- ——- ——- —–

    P(person from nursing home ∪ person over age 95) =


    1. FALSE: 0.028
    2. FALSE: 0.52
    3. TRUE: 0.55
    4. FALSE: 0.58

    1. 0.028: Incorrect
    2. 0.52: Incorrect
    3. 0.55: Correct
    4. 0.58: Incorrect