Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-1154-en_uva-elementary-probability-1154-en
    nameuva-elementary-probability-1154-en
    sectionProbability/Elementary Probability
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Research shows that 42% of all adults are interested in a trip to Mars. Of these adults, 62% are under the age of 28. If we assume that age and interest are independent, how high is the probability that a randomly selected adult would be both interested in traveling to Mars and is younger than 28?


    1. TRUE: 0,26
    2. FALSE: 0,38
    3. FALSE: 0,42
    4. FALSE: 0,62

    1. 0.26: Correct
    2. 0.38: Incorrect
    3. 0.42: Incorrect
    4. 0.62: Incorrect