Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-multiplication-rule-639-en_uva-multiplication-rule-639-en
    nameuva-multiplication-rule-639-en
    sectionProbability/Elementary Probability/General Rules/Multiplication rule
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Two events A and B are independent if holds


    1. FALSE: P (A ∪ B) = P (A) + P (B)
    2. FALSE: P (A ∪ B) = P (A) + P (B) - P (A ∩ B)
    3. TRUE: P (A ∩ B) = P (A) P (B)
    4. FALSE: P (A | B) = P (B | A)

    1. P (A ∪ B) = P (A) + P (B): Incorrect
    2. P (A ∪ B) = P (A) + P (B) - P (A ∩ B): Incorrect
    3. P (A ∩ B) = P (A) P (B): Correct
    4. P (A | B) = P (B | A): Incorrect