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From Karnataka Open Educational Resources
Activity- statistics problems (view source)
Revision as of 12:59, 14 August 2014
, 12:59, 14 August 2014→Solution:
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Standard deviation σ=<math>\sqrt{\frac {\sum {fx^2}}{n}-({\frac{\sum fx}{n})^2}}</math> <br>+σ=<math>\sqrt{214-174.24}</math> <br>+σ=<math>\sqrt{39.96}</math> <br>
−
σ²=31.12<br>
σ²=31.12<br>
−standard deviation σ=<math>\sqrt{varience}</math> <br>
−σ=<math>\sqrt{\frac{10700}{50}-({\frac{660}{50})^2}}</math> <br>
+. σ=<math>\sqrt{31.12}</math> <br>
−. σ=5.58
−σ=6.3
