document.write( "Question 1201566: Find the area under the normal curve to the left of z=−1.55 plus the area under the normal curve to the right of z=2.55
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Algebra.Com's Answer #836011 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "It is the same as to subtract from the total area under this curve \r\n" );
document.write( "part of the area under this curve between the marks z= -1.55 and z= 2.55.\r\n" );
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document.write( "Use function normalcdf of your regular calculator\r\n" );
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document.write( "    the area of the interest = 1 - normalcdf(-1.55, 2.55, 0,1) = 1 - 0.934 = 0.066    (rounded).    ANSWER\r\n" );
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document.write( "normalcfd stands for normal cumulative distribution function.\r\n" );
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document.write( "                          z1     z2   mean  SD   <<<---=== formatting pattern\r\n" );
document.write( "Its format is  normalcdf(-1.55, 2.55, 0,    1).\r\n" );
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