Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-correlation-5-en_uva-correlation-5-en
    nameuva-correlation-5-en
    sectionDescriptive statistics/Summary Statistics/Bivariate statistics/Correlation
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty1.881
    p-value0.8051

    Question

    In a regression analysis, the explanatory variable x has a standard deviation that is twice as small as that of the response variable y. Furthermore, the slope b has a slope of 0.3. Then the correlation between x and y is equal to


    1. TRUE: 0.15
    2. FALSE: 0.30
    3. FALSE: 0.60

    1. 0.15: Correct
    2. 0.30: Incorrect
    3. 0.60: Incorrect