Changes
From Karnataka Open Educational Resources
82 bytes added
, 08:05, 10 July 2014
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| ==Solution== | | ==Solution== |
| <math>\frac{\sum x}{n}=\bar x </math> <br> | | <math>\frac{\sum x}{n}=\bar x </math> <br> |
| + | |
| <math>\sum {x} ={\bar x \times {n}} </math> <br> | | <math>\sum {x} ={\bar x \times {n}} </math> <br> |
| + | |
| + | <math>\sum {x} ={12 \times {10}} </math> <br> |
| + | |
| + | <math>\sum {x} =120 </math> <br> |