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Pulsified333

  • one year ago

involving sets E and F. Suppose for this problem that Pr[E]=17/24 and Pr[F]=13/24. Just as in the book, Pr[(E∪F)′]=0. (1) What is Pr[E|F]? (2) What is Pr[F|E]?

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  1. Pulsified333
    • one year ago
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    @dan815

  2. anonymous
    • one year ago
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    \[P(E\cup F)'=0\] means everything is either in E or F or both nothing is outside the total therefore in E and F is 1

  3. Pulsified333
    • one year ago
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    so how do i find the intersection of E and F

  4. Pulsified333
    • one year ago
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    @satellite73

  5. Zarkon
    • one year ago
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    \[P(E\cup F)=P(E)+P(F)-P(E\cap F)\]

  6. Pulsified333
    • one year ago
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    so is the Union of E and F 30?

  7. Pulsified333
    • one year ago
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    i still do not get how to find the intersection

  8. Zarkon
    • one year ago
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    solve the equation I wrote above...then plug in numbers

  9. anonymous
    • one year ago
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    where does the 30 come from?

  10. anonymous
    • one year ago
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    oh nvm i see, it is the numerator \[\frac{30}{24}\] which is of course the probability of nothing, since it is larger than one what needs to be subtracted?

  11. Pulsified333
    • one year ago
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    right

  12. Pulsified333
    • one year ago
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    im still confused on how to do this

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