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}-({\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 |
Revision as of 05:03, 13 August 2014
Problem 1
If n =10, = 12 and
INTERPRETATION OF PROBLEM
Previous knowledge
Solution
σ=
σ=
σ=
σ=
σ=
σ=3