document.write( "Question 537506: 1. What percentage of the area of the standard normal distribution is between z=-1.00 and z=+1.00? How do you know this?\r
\n" ); document.write( "\n" ); document.write( "2. Find the z-score for the standard normal distribution where:
\n" ); document.write( " Area is about equal to 0.95 to the left of z.
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Algebra.Com's Answer #352885 by stanbon(75887)\"\" \"About 
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1. What percentage of the area of the standard normal distribution is between z=-1.00 and z=+1.00? How do you know this?
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\n" ); document.write( "P(-1 < z < 1) = normalcdf(-1,1) = 0.6827
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\n" ); document.write( "2. Find the z-score for the standard normal distribution where:
\n" ); document.write( "Area is about equal to 0.95 to the left of z.
\n" ); document.write( "invNorm(0.95) = 1.645
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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