document.write( "Question 259798: Can someone please put me on the right track i ask this question four time and no answer was given.\r
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\n" ); document.write( "\n" ); document.write( "You are given the following frequency distribution for the number of errors that students made in a test \r
\n" ); document.write( "\n" ); document.write( "Errors Frequency\r
\n" ); document.write( "\n" ); document.write( "0-2 14
\n" ); document.write( "3-5 1
\n" ); document.write( "6-8 9
\n" ); document.write( "9-11 19
\n" ); document.write( "12-14 17\r
\n" ); document.write( "\n" ); document.write( "Find the mean, variance, and the standard deviation\r
\n" ); document.write( "\n" ); document.write( "please help ASAP!!!!!!!!!!!!!!!!!
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Algebra.Com's Answer #191303 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
This is not my field but here is something that might help.
\n" ); document.write( "http://davidmlane.com/EXCEL/standard_deviation.html
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