document.write( "Question 125696: looking for the standard deviation for these numbers.\r
\n" ); document.write( "\n" ); document.write( "38 45 47 47 48 50 50 52 58 62
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\n" ); document.write( "62 63 64 68 70 72 72 72 72 74
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\n" ); document.write( "78 79 80 80 82 84 88 90 94 99\r
\n" ); document.write( "\n" ); document.write( "First I add all numbers to find the mean. 2040/30=68
\n" ); document.write( "here is where I get lost. \r
\n" ); document.write( "\n" ); document.write( "I subtract the lowest number from the mean. 38-68=-30
\n" ); document.write( "and subtract the largest number from the mean. 99-68=31
\n" ); document.write( "I square them and add them together and that is where I get stuck.\r
\n" ); document.write( "\n" ); document.write( "(-30*-30)=900 (31*31)=961. 900+961=1861 Now am I supposed to divide by 2 or 30\r
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\n" ); document.write( "\n" ); document.write( "I am a little confused.\r
\n" ); document.write( "\n" ); document.write( "Darrin \n" ); document.write( "

Algebra.Com's Answer #92078 by stanbon(75887) $\"\"$ $\"About$

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See the example on the following site:
\n" ); document.write( "http://richardbowles.tripod.com/maths/normdist/calc_sd1.htm
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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