document.write( "Question 744599: P(A)=0.40; P(B) = 0.25; the probability of both events occurring is 0.15. What is the probability of either event occurring?\r
\n" ); document.write( "\n" ); document.write( "A. 0.15
\n" ); document.write( "B. 0.50
\n" ); document.write( "C. 0.65
\n" ); document.write( "D. 0.80\r
\n" ); document.write( "\n" ); document.write( "Thank you for any help you can give. \n" ); document.write( "

Algebra.Com's Answer #852562 by ikleyn(53765) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "P(A) = 0.40; P(B) = 0.25; the probability of both events occurring is 0.15.
\n" ); document.write( "What is the probability of either event occurring?
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document.write( "This question is about P(A U B).\r\n" );
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document.write( "Use the standard formula  P(A U B) = P(A) + P(B) - P(A and B).\r\n" );
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document.write( "Substitute the given values\r\n" );
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document.write( "    P(A U B) = 0.40 + 0.25 - 0.15 = 0.50.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "The answer in the post by @lynnlo is incorrect.\r
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