![](data:image/png;base64,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) 3.общую дисперсию для всей совокупности обследованных магазинов (расчеты представить в таблице 2);
Таблица 2
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAWCAIAAACt/zAoAAABIklEQVR4nGP5//8/A1mAhTxtozoHi05ra+ujR4/i03nixAl3d/eIiIiZM2cCuceOHQsJCQEK6ujoELDTwsJiw4YN/v7+fX193NzcW7ZsmT9/fkBAwKxZswi71tHREWjDnDlzLl26FB0d7eTkBHQFmhqc/qyurgbac/LkSSMjI6wKsOv8+vXrihUrxMTEXrx4ARe0s7M7dOgQPp0PHz5sb29vamoyMzNrbW318vKCiCNrw6Lz3Llz27dvnzZtGhMTU1xcXGVl5f79+4HeBlooLS29fPlynDp9fHyASoHagGx+fv7IyEg/P7/Vq1dnZGQ8fvwYn53Pnj1D5s4GAyCjvLwcGML4dOICFy9eLCoqIlNnVVXV3LlzSdb5/PlzNBHy8woAs7Bw1jfM/EoAAAAASUVORK5CYII=)
| f
|
. f
| ( )
| ( )²
| ( )². f
| ( )³. f
| ( )⁴. f
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 2,1
| 2
| 4,2
| -0,72
| 0,52
| 1,05
| -0,76
| 0,55
| 2,3
| 5
| 11,5
| -0,52
| 0,27
| 1,37
| -0,72
| 0,38
| 2,5
| 18
| 45
| -0,32
| 0,10
| 1,89
| -0,61
| 0,20
| 2,7
| 23
| 62,1
| -0,12
| 0,02
| 0,35
| -0,04
| 0,01
| 2,9
| 19
| 55,1
| 0,08
| 0,01
| 0,11
| 0,01
| 0,00
| 3,1
| 25
| 77,5
| 0,28
| 0,08
| 1,90
| 0,53
| 0,15
| 3,3
| 5
| 16,5
| 0,48
| 0,23
| 1,13
| 0,54
| 0,26
| 3,5
| 3
| 10,5
| 0,68
| 0,46
| 1,37
| 0,93
| 0,63
| -
| 100
| 282,4
| -0,19
|
| 9,18
| -0,13
| 2,16
| Среднее значение Хi =2,824
| Дисперсия = 0, 09182
| Среднее квадратическое отклонение 0,30
| |