Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-conditional-probability-645-en_uva-conditional-probability-645-en
    nameuva-conditional-probability-645-en
    sectionProbability/Elementary Probability/Conditional probability
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    A complete set of 52 playing cards contains 26 red and 26 black cards. We randomly choose four cards from a standard suit. The first three cards chosen are all red. The conditional probability that the fourth one is also red is equal to:


    1. FALSE: 3/26
    2. TRUE: 23/49
    3. FALSE: 26/52
    4. FALSE: 26/26

    1. 3/26: Incorrect
    2. 23/49: Correct
    3. 26/52: Incorrect
    4. 26/26: Incorrect