Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-variance-563-en_uva-variance-563-en
    nameuva-variance-563-en
    sectionDescriptive statistics/Summary Statistics/Measures of Spread/Variance
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.696
    p-value0.1748

    Question

    Calculate the sample variance of the numbers 1, 4, 5, 7, 8


    1. FALSE: 1.225
    2. FALSE: 2.449
    3. FALSE: 2.739
    4. TRUE: 7.5

    1. 1.225: Incorrect
    2. 2,449: Incorrect
    3. 2,739: Incorrect
    4. 7.5: Correct