SOLUTION: Use the union rule to answer the question If n(A)=5, n(B)=11, and n(A\cap B)=3,what is n(A\cup B)?

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Question 112078: Use the union rule to answer the question
If n(A)=5, n(B)=11, and n(A\cap B)=3,what is n(A\cup B)?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If n(A)=5, n(B)=11, and n(A\cap B)=3,what is n(A\cup B)?
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n(A cup B) = n(A) + n(B) - n(A cap B)
n(A cup B) = 5 + 11 - 3 = 13
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Cheers,
Stan H.