Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-conditional-probability-500-en_uva-conditional-probability-500-en
    nameuva-conditional-probability-500-en
    sectionProbability/Elementary Probability/Conditional probability
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Below is a cross tabulation of 80 workers’ gender and the number of working hours per week (rounded to whole hours) are given.

    ——- ———– ————- ————- ———– < 18 hours 18 - 32 hours 33 - 36 hours > 36 hours male 1 7 14 8 woman 6 18 21 5 ——- ———– ————- ————- ———–

    The probability that a person randomly drawn from these workers is female is female and/or works less than 18 hours is


    1. FALSE: 7.5%
    2. FALSE: 51%
    3. TRUE: 63.75%
    4. FALSE: 71.25%

    1. 7.5%: Incorrect
    2. 51%: Incorrect
    3. 63.75%: Correct
    4. 71.25%: Incorrect