Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-elementary-probability-715-en_uva-elementary-probability-715-en
    nameuva-elementary-probability-715-en
    sectionProbability/Elementary Probability
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    There is a cabinet with five doors. Behind the first door are two lions; behind the second door a goat and a rabbit; behind the third door is a cat and a rabbit; behind the fourth door are two rabbits; and behind the fifth door are two tigers. If we were to open any door, how likely are we to see at least one rabbit?


    1. FALSE: 15\frac{1}{5}
    2. TRUE: 25\frac{2}{5}
    3. FALSE: 12\frac{1}{2}
    4. FALSE: 35\frac{3}{5}

    1. 15\frac{1}{5}: Incorrect
    2. 25\frac{2}{5}: Correct
    3. 12\frac{1}{2}: Incorrect
    4. 35\frac{3}{5}: Incorrect