document.write( "Question 363541: I have the answer to this problem and I am sure I am using the correct formula, but I am not getting the correct answer of .227\r
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document.write( "The lifetime of a machine component is normally distributed with a mean of 3 and a standard deviation of .16. What is the probability that X is greater than 3.3
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document.write( "X ~ N(3, .16)\r
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document.write( "I would like to see the process. \n" );
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Algebra.Com's Answer #259256 by stanbon(75887) ![]() You can put this solution on YOUR website! I have the answer to this problem and I am sure I am using the correct formula, but I am not getting the correct answer of .227 \n" ); document.write( "The lifetime of a machine component is normally distributed with a mean of 3 and a standard deviation of .16. What is the probability that X is greater than 3.3 \n" ); document.write( "X ~ N(3, .16) \n" ); document.write( "------------- \n" ); document.write( "z(3.3) = (3.3-3)/0.16 = 1.875 \n" ); document.write( "--- \n" ); document.write( "P(x > 3.3) = P(z > 1.875) = 0.0304 \n" ); document.write( "------ \n" ); document.write( "You would not be the first person to \n" ); document.write( "find that the \"book\" answer was wrong. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |