document.write( "Question 1178713: Find the area under a normal curve with mean μ=100 and standard deviation ó=15.
\n" ); document.write( "1.Between 70 And 115
\n" ); document.write( "2.100 below
\n" ); document.write( "3. 85 below
\n" ); document.write( "4.Between 85 and 145
\n" ); document.write( "5.between 115 and 130
\n" ); document.write( "6.x<130
\n" ); document.write( "7.x<85
\n" ); document.write( "8.x>130
\n" ); document.write( "9.x>70
\n" ); document.write( "10.55\n" ); document.write( "
Algebra.Com's Answer #808121 by Boreal(15235)\"\" \"About 
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Between 70 and 115 is between z=-2 and z=+1 where z=(x-mean)/sd. Probability is 0.8186
\n" ); document.write( "below 100 is provability 1/2
\n" ); document.write( "below 85 is probability 0.1587; that is the same as x < 85
\n" ); document.write( "between 85 and 145 is between z of -1 and +3 with probability of 0.8400.
\n" ); document.write( "between 115 and 130 is between 1 and 2 sd or prob.=0.1359
\n" ); document.write( "x <130 is below 2 sd with prob. 0.9772
\n" ); document.write( "x > 130 is the complement of the previous or 0.0228
\n" ); document.write( "x >70 is probability 0.9772, the mirror of x < 130.
\n" ); document.write( "probability x=55 or any other number is 0, since those are dimensionless points.\r
\n" ); document.write( "\n" ); document.write( "Use VARS2normal cdf, never normal pdf, with arguments the z values of interest separated by a comma.
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