document.write( "Question 581258: Let the random variable X follow a normal probability distribution with a mean 10 and a standard deviation of 2.\r
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document.write( "Using the above information, find x such that P(X>x)=0.05; find x such that P(X
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Algebra.Com's Answer #371538 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Let the random variable X follow a normal probability distribution with a mean 10 and a standard deviation of 2. \n" ); document.write( "Using the above information, find x such that P(X>x)=0.05; find x such that P(X What is the breakdown of this problem? Help! \n" ); document.write( "------ \n" ); document.write( "Draw a normal curve with horizontal axis \"x\". \n" ); document.write( "Shade a right tail area that has 5% of the area under the curve \n" ); document.write( "and to the right. \n" ); document.write( "------ \n" ); document.write( "Draw a normal curve with horizontal axis \"z\". \n" ); document.write( "Find the z-value that has a right tail of 5% \n" ); document.write( "z = invNorm(0.95) = 1.6449 \n" ); document.write( "------------ \n" ); document.write( "Find the correspondina \"x\" value: \n" ); document.write( "x = zs + u \n" ); document.write( "x = 1.6449*2+10 = 13.2898 \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |