Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-standard-deviation-462-nl_uva-standard-deviation-462-nl
    nameuva-standard-deviation-462-nl
    sectionDescriptive statistics/Summary Statistics/Measures of Spread/Standard Deviation
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeCalculation
    LanguageDutch
    LevelStatistical Literacy
    IRT-Difficulty3.801
    p-value0.1558

    Question

    Van twee onafhankelijke stochastische variabelen X en Y is gegeven: var(X) = 9 en var(Y) = 16. Dan is de standaarddeviatie van X - Y gelijk aan


    1. FALSE: -7
    2. FALSE: -5
    3. TRUE: 5
    4. FALSE: 25

    1. -7: Incorrect
    2. -5: Incorrect
    3. 5: Correct
    4. 25: Incorrect