Die Formel könnte so aussehen:
1 - ∏ (k = 1 bis x) (1 - (0.05 + 0.0018·(k - 1)))
Und hier eine Wertetabelle für x = 1 bis 50
[1, 0.05;
2, 0.09921;
3, 0.1474923439;
4, 0.1947212681;
5, 0.2407832116;
6, 0.2855770021;
7, 0.3290139203;
8, 0.3710176489;
9, 0.4115241123;
10, 0.4504812161;
11, 0.4878484934;
12, 0.5235966686;
13, 0.5577071471;
14, 0.5901714425;
15, 0.6209905500;
16, 0.6501742776;
17, 0.6777405446;
18, 0.7037146567;
19, 0.7281285690;
20, 0.7510201434;
21, 0.7724324111;
22, 0.7924128454;
23, 0.8110126545;
24, 0.8282860978;
25, 0.8442898335;
26, 0.8590822993;
27, 0.8727231327;
28, 0.8852726318;
29, 0.8967912596;
30, 0.9073391929;
31, 0.9169759168;
32, 0.9257598648;
33, 0.9337481033;
34, 0.9409960608;
35, 0.9475572989;
36, 0.9534833241;
37, 0.9588234385;
38, 0.9636246255;
39, 0.9679314699;
40, 0.9717861072;
41, 0.9752282021;
42, 0.9782949507;
43, 0.9810211049;
44, 0.9834390161;
45, 0.9855786952;
46, 0.9874678861;
47, 0.9891321508;
48, 0.9905949633;
49, 0.9918778103;
50, 0.9930002969]