Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-1198-en_uva-elementary-probability-1198-en
    nameuva-elementary-probability-1198-en
    sectionProbability/Elementary Probability
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    The distribution of the number of children per Dutch family has a mean of 1.2 with a standard deviation of 1.5. You randomly do a sample from 20 families in the Netherlands. What is the probability that the mean of the number of children per family in the sample is less than or equal to 2?


    1. FALSE: 0,20
    2. FALSE: 0,60
    3. FALSE: 0,80
    4. TRUE: 0,99

    1. 0.20: Incorrect
    2. 0.60: Incorrect
    3. 0.80: Incorrect
    4. 0.99: Correct