document.write( "Question 169354: I am stuck on a problem. I'm not sure where I went wrong. Will you please help.
\n" ); document.write( "I have a table with the following values: 456,306,160,363,376,935,54,349
\n" ); document.write( "I have to find the mean, the median, the mode, and the standard deviation of the data. Round to the nearest hundredth if necessary.
\n" ); document.write( "For the mean I came up with 374.88
\n" ); document.write( "For the median I came up with: 354.5
\n" ); document.write( "For the mode I came up with: 0 since no numbers repeat themselves.
\n" ); document.write( "Now for the standard deviation I went as follows:
\n" ); document.write( "(456-374.88)+(306-374.88)+(160-374.88)+(363-374.88)+(376-374.88)+(935-374.88)+(54-374.88)+(349-374.88)/8
\n" ); document.write( "=81.12-68.88-214.88-11.88+1.12+560.12-320.88-25.88/8
\n" ); document.write( "=-0.04/8
\n" ); document.write( "=-5.E-03
\n" ); document.write( "What did I do wrong. Will you please show me.
\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #124878 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
the standard deviation is a root-mean-square value\r
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\n" ); document.write( "\n" ); document.write( "square all of the differences from the mean
\n" ); document.write( "__ calculate the average of the squared differences
\n" ); document.write( "__ the standard deviation is the square root of the average\r
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\n" ); document.write( "\n" ); document.write( "the squaring/square rooting eliminates the \"cancelling\" effect of negative deviations
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