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    Probability Axioms and Counting

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    Question1: Probability Axioms
    Assume that P(A) = 0.5, P (A ∩ C) = 0.18, P(C) = 0.4, P(B) = 0.4, P (A ∩ B ∩ C) = 0.06,
    P (B ∩ C) = 0.18, and P (A ∩ B) = 0.15. Calculate the following probabilities:
    a. P (A ∪ B ∪ C)
    b. P (A' ∩ (B ∪ C))
    c. P ((B ∩ C)' ∪ (A ∩ B)')
    d. P (A/ (A ∩ C))

    Question 2: Counting
    A hand of five cards is chosen randomly and without replacement from a standard deck of 52 cards.
    a. What is the probability that the hand contains exactly 2 aces and exactly 1 kings? Include at least 4 digits following the decimal point in your answer.

    © BrainMass Inc. brainmass.com June 4, 2020, 5:29 am ad1c9bdddf
    https://brainmass.com/statistics/random-variables/probability-axioms-counting-634099

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    a)
    By inclusion-exclusion principle,
    P (A ∪ B ∪ C) = P(A) + P(B) + P(C) - P (A ∩ C) - P (B ∩ C) - P (A ∩ B) + P (A ∩ B ∩ C)
    = 0.5 + 0.4 + 0.4 - 0.18 - 0.18 + 0.15 + 0.06
    = 0.85

    b)
    By inclusion-exclusion principle,
    P (B ∪ C) = P(B) + P(C) - P (B ∩ C)
    = 0.4 + 0.4 - 0.18
    = 0.62

    P (A' ∩ (B ∪ C)) = P (B ∪ C) ...

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