A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Events E and F in a sample space S. Assume that Pr[E]=17/30, Pr[F|E]=12/17, and Pr[E′∩F′]=1/5. (1) Pr[F]= (2) Pr[E∩F]=

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    #2 is 102/255

  2. sleepyjess
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Welcome to OpenStudy! I'm not sure on this, but maybe @freckles or @hero can help :)

  3. freckles
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what!?! what is PR mean? Please don't say probability.

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    question makes no sense to me, a probability is never larger than 1

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry i fixed it @satellite73

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    that's better

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[P(F|E)=\frac{P(F\cap E)}{P(E)}\]

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you can use that to find \[P(F\cap E)\]

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i already found F∩E which is 102/255

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh no !

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[P(F\cap E)=\frac{17}{30}\times \frac{12}{17}=\frac{12}{30}=\frac{2}{5}\]

  12. Pulsified333
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @satellite73 isn't P(F∩E) = Pr(F|E) * Pr(E)?

  13. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.