Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-random-variables-256-en_uva-random-variables-256-en
    nameuva-random-variables-256-en
    sectionProbability/Elementary Probability/Random variables
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.646
    p-value0.8484

    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 —————– ——- ——- ——- ——- —–

    The probability that a randomly drawn person is younger than 85, given that he/she lives in a nursing home, is


    1. FALSE: 0.25
    2. FALSE: 0.45
    3. TRUE: 0.51
    4. FALSE: 0.57

    1. 0.25: Incorrect
    2. 0.45: Incorrect
    3. 0.51: Correct
    4. 0.57: Incorrect