Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-standard-deviation-259-en_uva-standard-deviation-259-en
    nameuva-standard-deviation-259-en
    sectionDescriptive statistics/Summary Statistics/Measures of Spread/Standard Deviation
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty4.238
    p-value0.0784

    Question

    The variable X is given to have a mean of 45 and a standard deviation of 12. The variable is standardized by subtracting 45, then dividing by 12. The standard deviation of this standardized variable is then equal to:


    1. FALSE: 0
    2. TRUE: 1
    3. FALSE: 3.46
    4. FALSE: 12

    1. 0: Incorrect
    2. 1: Correct
    3. 3.46: Incorrect
    4. 12: Incorrect