![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=49ad89b3bfb4662ad5b9963df77a00b0.png\")
.Calculate the standard deviation by using the formula : .
Where ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fcf8bf080566032ac3a5726b98b438aa.png\")
is standard deviation.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bb65995b90c66bc342cf2694b9881b69.png\")
= Each value in the data set.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=87f6b8981dd950b84a454c6bcf988106.png\")
= Mean of all values in the data set.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c087b669965ca3762f7805c58df525f9.png\")
= Number of values in the data set.
Mean of the data ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c4df8d757f7de3e34e07140cecc3b92e.png\")
.
Number of values in the data set ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8d3e9639e4a727fc703f5d00066be310.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a00dfa37a066f87a7d52a3c929d2fcd.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ea4f74ece8b65ea8996151df5aa89218.png\")
The standard deviation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e937bd0e54a04328208cf2a1c2fff7bb.png\")
.