Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-mean-206-en_uva-mean-206-en
    nameuva-mean-206-en
    sectionDescriptive statistics/Summary Statistics/Measures of Location/Mean
    typeschoice
    solutionFALSE, TRUE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty0.418
    p-value0.9113

    Question

    The mean of X is 5 and the standard deviation of X is 1. A new variable Z is created using the formula Z = (X - 5)/1. The mean of Z is


    1. FALSE: -5
    2. TRUE: 0
    3. FALSE: 1

    1. -5: Incorrect
    2. 0: Correct
    3. 1: Incorrect