Changes
From Karnataka Open Educational Resources
5 bytes added
, 14:46, 10 July 2014
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| <math>\sum {x} =120 </math> <br> | | <math>\sum {x} =120 </math> <br> |
− | σ=<math>\sqrt{\frac{\sum {x^2}}{n}}-{\frac{({\sum{x}{n})^{2}}}</math> | + | σ=<math>\sqrt{\frac{\sum {x^2}}{n}}-{\frac{({\sum{x}{n})^{2}}}</math> <br> |