Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-variance-597-en_uva-variance-597-en
    nameuva-variance-597-en
    sectionDescriptive statistics/Summary Statistics/Measures of Spread/Variance
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.881
    p-value0.1423

    Question

    Calculate the sample variance of the following 5 numbers: 8, 14, 7, 10, 11


    1. TRUE: 7.5
    2. FALSE: 2.74
    3. FALSE: 1.22
    4. FALSE: 6

    1. 7.5: Correct
    2. 2.74: Incorrect
    3. 1.22: Incorrect
    4. 6: Incorrect