| x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| f | 51 | 203 | 383 | 525 | 532 | 408 | 273 | 139 | 43 | 27 | 10 | 4 | 2 |
|
$x_i$
|
$f_i$
|
$f_ix_i$
|
$\text{x}_{\text{i}}-\overline{\text{X}}$
|
$\big(\text{x}_{\text{i}}-\overline{\text{X}}\big)^2$
|
$\text{f}_{\text{i}}\big(\text{x}_{\text{i}}-\overline{\text{X}}\big)^2$
|
|
0
|
51
|
0
|
-3.88
|
15.05
|
767.55
|
|
1
|
203
|
203
|
-2.88
|
8.29
|
1682.87
|
|
2
|
383
|
766
|
-1.88
|
3.53
|
1351.99
|
|
3
|
525
|
1575
|
-0.88
|
0.77
|
404.25
|
|
4
|
532
|
2128
|
0.12
|
0.014
|
7.448
|
|
5
|
408
|
2040
|
1.12
|
1.25
|
510
|
|
6
|
273
|
1638
|
2.12
|
4.49
|
1225.77
|
|
7
|
139
|
973
|
3.12
|
9.73
|
1352.47
|
|
8
|
43
|
344
|
4.12
|
16.97
|
729.71
|
|
9
|
27
|
243
|
5.12
|
26.21
|
707.67
|
|
10
|
10
|
100
|
6.12
|
37.45
|
374.5
|
|
11
|
4
|
44
|
7.12
|
50.69
|
202.76
|
|
12
|
2
|
24
|
8.12
|
65.93
|
131.86
|
|
|
$\sum\text{f}_{\text{i}}=\text{N}=2600$
|
$\sum\text{f}_{\text{i}}\text{x}_{\text{i}}=10078$
|
|
|
$\sum\text{f}_{\text{i}}\big(\text{x}_{\text{i}}-\overline{\text{X}}\big)^2=9448.848$
|
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