Exam 1

  1. Metainformation

    Tag Value
    fileProbability_uva-general-rules-1180-en_uva-general-rules-1180-en
    nameuva-general-rules-1180-en
    sectionProbability/Elementary Probability/General Rules
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    The sum of the probabilities in a binomial distribution must equal 1. To show that this is TRUE, we first take q = 1- p so that q + p = 1. Below is a table showing a binomial distribution with n = 1 observation, and its sum is 1. What will the probability distribution be if n = 2, and the probability of success is p?

    —————— —— Number of successes Chance 0 q 1 p —————— ——

         A:

    —————— ——— Number of successes Chance 0 q 1 q - p 2 p —————— ———

          B:

    —————— —— Number of successes Chance 0 q 1 qp 2 p —————— ——

          C:

    —————— —— Number of successes Chance 0 q 1 p 2 p —————— ——

          D:

    —————— ———– Number of successes Chance 0 q 1 p 2 1- q- p —————— ———–


    1. FALSE: A
    2. FALSE: B
    3. FALSE: C
    4. TRUE: D

    1. A: Incorrect
    2. B: Incorrect
    3. C: Incorrect
    4. D: Correct