P (A or B)

Discussion in 'Probability and Statistics' started by nycmathguy, Jul 10, 2022.

  1. nycmathguy

    nycmathguy

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    IMG_20220710_153621.jpg

    Requesting two "probability of or" word problems.
     
    nycmathguy, Jul 10, 2022
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  2. nycmathguy

    MathLover1

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    If the events A and B are not mutually exclusive, the probability of getting A or B that is P (A ∪ B) formula is given as follows:
    P (A ∪ B) = P(A) + P(B) – P (A and B)
     
    MathLover1, Jul 10, 2022
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  3. nycmathguy

    nycmathguy

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    This thread is about mutually exclusive events.
    I didn't use P (A ∪ B) = P(A) + P(B) – P (A and B).

    Do you have two mutually exclusive word problems for me?
     
    nycmathguy, Jul 10, 2022
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  4. nycmathguy

    MathLover1

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    two mutually exclusive word problems

    1. One card is drawn from a well-shuffled deck of 52 cards. What is the probability of getting a king or an ace?
    2. A bag contains 8 black pens and 2 red pens and if a pen is drawn at random. What is the probability that it is black pen or red pen?
     
    MathLover1, Jul 10, 2022
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  5. nycmathguy

    nycmathguy

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    To answer question 1 a basic knowledge of cards is needed. I know nothing about cards. Can you replace this card problem with something else?
     
    nycmathguy, Jul 11, 2022
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