document.write( "Question 1118693: if the mean of the numbers 1,3,4,(k-5),7,(k-1), and 8 is 5, find the value of k and the standard deviation of the distribution? \n" ); document.write( "
Algebra.Com's Answer #734093 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Mean, as in \"average\", 5; of the seven numbers,\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%281%2B3%2B4%2B7%2B8%2B%28k-5%29%2B%28k-1%29%29%2F7=5\"\r
\n" ); document.write( "\n" ); document.write( ".\r
\n" ); document.write( "\n" ); document.write( ".
\n" ); document.write( "\"highlight%28k=9%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "standard deviation, \"sqrt%28%2816%2B4%2B4%2B1%2B1%2B9%2B9%29%2F%287-1%29%29=2.7\".
\n" ); document.write( "
\n" );