document.write( "Question 694956: A set of normally distributed data has mean 47 s and standard deviation 0.6 s. Find the percentage of the data within these intervals:
\n" ); document.write( "a. Between 46 and 47 s
\n" ); document.write( "b. Greater than 1.5s above or below the mean \n" ); document.write( "
Algebra.Com's Answer #428363 by stanbon(75887)\"\" \"About 
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A set of normally distributed data has mean 47 and standard deviation 0.6 s. Find the percentage of the data within these intervals:
\n" ); document.write( "a. Between 46 and 47
\n" ); document.write( "Draw a normal curve with mean = x = 47
\n" ); document.write( "Plot 46 on the x-axis
\n" ); document.write( "Find the z-value of 47
\n" ); document.write( "z(46) = (46-47)/0.6 = -1/0.6 = -5/3
\n" ); document.write( "Note: The z-value of the mean is 0
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\n" ); document.write( "Percentage between 46 and 47 = P(-5/3 < z < 0) = 0.4522
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\n" ); document.write( "b. Greater than 1.5s above or below the mean
\n" ); document.write( "If that \"s\" means standard deviation the answer is:
\n" ); document.write( "normalcdf(-100,-1.5) = 0.0668
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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