Results 1 to 2 of 2

Math Help - Baye's Rule 2

  1. #1
    MHF Contributor
    Joined
    Mar 2010
    From
    Florida
    Posts
    3,093
    Thanks
    5

    Baye's Rule 2

    Two methods, A and B, are available for teaching a skill. The failure rate for method A is 30% and 10% for B. Method is more expensive, however, and hence used only 20% of the time (A 80%). A worker is taught the skill by one of two methods but fails to learn the skill. What is the probability he was taught by method A?

    I am looking for P(A| failed)?

    Also, I am not sure hoe set this up if that is correct.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,403
    Thanks
    1486
    Awards
    1
    P(A|F)=\dfrac{P(F|A)P(A)}{P(F|A)P(A)+P(F|B)P(B)}

    Is that what you are looking for?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Baye's theorem
    Posted in the Statistics Forum
    Replies: 4
    Last Post: December 27th 2011, 08:13 AM
  2. [SOLVED] Baye's Rule
    Posted in the Statistics Forum
    Replies: 0
    Last Post: February 10th 2011, 12:20 PM
  3. [SOLVED] Total probability and Baye's rule
    Posted in the Statistics Forum
    Replies: 1
    Last Post: September 25th 2009, 12:42 PM
  4. Conditional probability and Baye's rule
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: September 22nd 2009, 04:43 PM
  5. involving Baye's rule
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: September 2nd 2008, 07:08 AM

/mathhelpforum @mathhelpforum