Difference between revisions of "Activity- statistics problems"
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<math>\sum {x} =120 </math> <br> | <math>\sum {x} =120 </math> <br> | ||
− | σ=<math>\sqrt{\frac{\sum {x^2}}{n | + | σ=<math>\sqrt{\frac {\sum {x^2}}{n}-({\frac{\sum x}{n})^2}}</math> <br> |
+ | σ=<math>\sqrt{\frac{1530}{10}-{144}}</math> <br> |
Revision as of 16:06, 10 July 2014
Problem 1
If n =10, = 12 and = 1530 find coefficient of variation
INTERPRETATION OF PROBLEM
Previous knowledge
Solution
σ=
σ=