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From Karnataka Open Educational Resources
Activity- statistics problems (view source)
Revision as of 11:30, 10 July 2014
, 11:30, 10 July 2014→Solution
<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>
