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April 30th, 2009, 08:20 PM  #1 
Newbie Joined: Apr 2009 Posts: 5 Thanks: 0  NEED HELP WITH INDEPENDENT/DEPENDENT!!
Suppose that in the human population gene A occurs in 25% of people, gene B occurs in 44% of people, and genes A and B occur together in 11% of people. Are genes A and B independent? Mathematically justify your answer. Please help me with this problem. The question wants you to decide whether or not the situation is independent by proving: I understand that P(A) = 25 and P(B) = 44 but I do not know how to get the . Thanks in advance. 
May 1st, 2009, 01:18 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,471 Thanks: 2038 
You can understand from the question that P(A) = 0.25, P(B) = 0.44 and P(A?B) = 0.11. This is consistent with independence.


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