document.write( "Question 89502: I need help with these problems please explain them to me step by step thanks....I have an exam tomorrow i want to really understand them;.....\r
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document.write( "Problem #1
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document.write( "Find the percent of the total area under a normal curve that is contained within the specified interval. Between the mean and 1.64 standard deviations from the mean\r
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document.write( "Problem #2
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document.write( "Find the percent of the total area under the standard normal curve between the given z-scores.\r
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document.write( "z= -1.10 and z = -0.36 \n" );
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Algebra.Com's Answer #65060 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Problem #1 \n" ); document.write( "Find the percent of the total area under a normal curve that is contained within the specified interval. Between the mean and 1.64 standard deviations from the \n" ); document.write( "You need a z-chart or a calculator with z capability, like a TI 83 or 84 \n" ); document.write( "On the z cart find z=1.64. The chart tells you the area over the interval \n" ); document.write( "[0,1.64] = 0.9495-0.5000 = 0.4495 \n" ); document.write( "-------------------- \n" ); document.write( "Problem #2 \n" ); document.write( "Find the percent of the total area under the standard normal curve between the given z-scores. \n" ); document.write( "z= -1.10 and z = -0.36 \n" ); document.write( "Look up z = 1.10 = 0.8643-0.5000 = 0.3643 \n" ); document.write( "Look up z = 0.36 = 0.6406-0.5000 = 0.1406 \n" ); document.write( "Subtract the 2nd area from the 1st to get 0.2237 \n" ); document.write( "-------- \n" ); document.write( "Comment: Your z-chart might be arranged differently \n" ); document.write( "but the final figure you get should be the same \n" ); document.write( "as the one I have. \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |