Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-686-en_uva-elementary-probability-686-en
    nameuva-elementary-probability-686-en
    sectionProbability/Elementary Probability
    typenum
    solution0.497
    tolerance0
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Girls and boys choose different fields of study in high school. Boys are much more likely to choose directions such as woodworking, construction and electronics, while girls mostly choose subjects choose subjects such as nursing and beauty care. The table below shows the numbers of students who chose different subjects:

    ——— ————— —— ————- ———— ———————– ——– Woodworking Construction Electronics Nursing Beauty Care Total Girls 34 16 57 311 324 742 Boys 124 345 231 28 8 736 Total 158 361 288 339 332 1478 ——— ————— —— ————- ———— ———————– ——–

    What is the probability that a randomly selected student is a boy? Round Round to three decimal places.


    Solution

    The correct answer is: 0.497