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
\n" ); document.write( "\n" ); document.write( "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 mean\r
\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.\r
\n" ); document.write( "\n" ); document.write( "z= -1.10 and z = -0.36
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Algebra.Com's Answer #65060 by stanbon(75887)\"\" \"About 
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
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\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
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\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.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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