Exam 1

  1. Metainformation

    Tag Value
    fileDistributions_uva-normal-1329-en_uva-normal-1329-en
    nameuva-normal-1329-en
    sectionDistributions/Continuous/Normal
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty0.546
    p-value0.9041

    Question

    Within one standard deviation of the mean lies x% of the observations and within two standard deviations of the mean lies y% . We know that this variable has a normal distribution. What then is x and y?


    1. FALSE: X = 0.5, y = 1
    2. FALSE: X = 1, y = 2
    3. TRUE: X = 68, y = 95
    4. FALSE: X = 95, y = 68

    1. X = 0.5, y = 1: Incorrect
    2. X = 1, y = 2: Incorrect
    3. X = 68, y = 95: Correct
    4. X = 95, y = 68: Incorrect