document.write( "Question 667615: A distribution of values is normal with a mean of 231.6 and a standard deviation of 62.4.\r
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document.write( " Find the probability that a randomly selected value is less than 312.7.
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document.write( "P(X < 312.7) = \n" );
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Algebra.Com's Answer #415110 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A distribution of values is normal with a mean of 231.6 and a standard deviation of 62.4. \n" ); document.write( "Find the probability that a randomly selected value is less than 312.7. \n" ); document.write( "P(X < 312.7) = \n" ); document.write( "---- \n" ); document.write( "z(312.7) = (312.7-231.6)/62.4 = 1.3000 \n" ); document.write( "---- \n" ); document.write( "P(x < 312.7) = P(z < 1.3000) = 0.9031 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |