Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-mean-582-en_uva-mean-582-en
    nameuva-mean-582-en
    sectionDescriptive statistics/Summary Statistics/Measures of Location/Mean
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.165
    p-value0.2568

    Question

    Given is the following frequency table:

    ————— ————– ————- class limits class center frequencies [14,16> 15 4 [16,18> 17 6 [18,20> 19 8 [20,22> 21 3 [22,24> 23 9 [24,26> 25 1 [26,28> 27 10 ————— ————– ————-

    What is the best estimate of the mean?


    1. FALSE: 21
    2. TRUE: 21.44
    3. FALSE: 20.63
    4. FALSE: 22.06

    1. 21: Incorrect
    2. 21.44: Correct
    3. 20.63: Incorrect
    4. 22.06: Incorrect