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Activity- statistics problems (view source)
Revision as of 05:03, 13 August 2014
, 05:03, 13 August 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> <br>
σ=<math>\sqrt{\frac {\sum {x^2}}{n}-({\frac{\sum x}{n})^2}}</math> <br>
σ=<math>\sqrt{\frac{1530}{10}-{144}}</math> <br>
σ=<math>\sqrt{\frac{1530}{10}-{144}}</math> <br>
σ=<math>\sqrt{\frac{1530}{10}-{144}}</math> <br>
σ=<math>\sqrt{153-144}</math> <br>
σ=<math>\sqrt{153-144}</math> <br>
σ=<math>\sqrt{9}</math> <br>
σ=<math>\sqrt{9}</math> <br>
σ=3
σ=3