document.write( "Question 1152079: The probability that a football player weighs more than 230 pounds is .69, that he is at
\n" ); document.write( "least 75 inches tall is .55, and that he weights more than 230 pounds and is at least 75 inches tall is .43. Find the probability that a randomly selected football player weighs more than 230 pounds or is at least 75 inches tall. \n" ); document.write( "

Algebra.Com's Answer #774020 by ikleyn(52782) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " The correct solution is as follows.\r
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document.write( "Use the general formula  of the Probability theory\r\n" );
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document.write( "          P(A U B) = P(A) + P(B) - P(A ∩ B).\r\n" );
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document.write( "In your case P(A) = 0.69  (weighs more than 230 pounds);\r\n" );
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document.write( "             P(B) = 0.55  (is at least 75 inches tall),\r\n" );
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document.write( "             P(A ∩ B) = 0.43  (weights more than 230 pounds and is at least 75 inches tall).\r\n" );
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document.write( "Substitute the given data into the formula and calculate\r\n" );
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document.write( "         P(A U B) = 0.69 + 0.55 - 0.43 = 0.81.      ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "The solution by @Boreal is INCORRECT.\r
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