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April 30th, 2009, 08:20 PM   #1
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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.
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May 1st, 2009, 01:18 AM   #2
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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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