document.write( "Question 850492: Please help me solve: If P(A)=.6 and P(B)=.7 and P(A and B)=.3, what is P(A or B)? \n" ); document.write( "
Algebra.Com's Answer #512239 by harpazo(655)\"\" \"About 
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\n" ); document.write( "Use the formula:
\n" ); document.write( "p(a or b) = p(a) + p(b) - p(a and b)
\n" ); document.write( "p(a or b) = 0.6+0.7-0.3
\n" ); document.write( "p(a or b) = 1
\n" ); document.write( "The answer is 1.
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