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March 4th, 2018, 09:25 AM  #1 
Newbie Joined: Oct 2017 From: Rumba Posts: 20 Thanks: 0  Discrete Math question
Suppose that the probability of a person having fair hair is 0.2, that the probability of a person having fair hair given that the person has freckles is 0.4, and that the probability of a person having freckles is 0.06. Find the probability that a person has freckles given that the person has fair hair. Last edited by sita; March 4th, 2018 at 09:39 AM. 
March 4th, 2018, 10:12 AM  #2 
Senior Member Joined: May 2016 From: USA Posts: 1,126 Thanks: 468 
You need Bayes's Theorem. Do you know it? Is it in your text?

March 5th, 2018, 01:41 PM  #3 
Newbie Joined: Oct 2017 From: Rumba Posts: 20 Thanks: 0  
March 5th, 2018, 02:13 PM  #4 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,638 Thanks: 570 Math Focus: Yet to find out.  

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