birthday_colision/readme.md

Calculate the change that there are peopele with the same birthday.

group size	chance in fraction
2	0.0027397260273972603
3	0.008204165884781385
4	0.016355912466550306
5	0.027135573699793587
6	0.04046248364911148
7	0.0562357030959754
8	0.07433529235166902
9	0.09462383388916669
10	0.11694817771107764
11	0.14114137832173304
12	0.16702478883806438
13	0.19441027523242937
14	0.223102512004973
15	0.25290131976368635
16	0.2836040052528499
17	0.3150076652965606
18	0.3469114178717893
19	0.3791185260315367
20	0.41143838358058
21	0.4436883351652057
22	0.4756953076625501
23	0.5072972343239854
24	0.5383442579145288
25	0.5686997039694639
26	0.5982408201359389
27	0.626859282263242
28	0.6544614723423994
29	0.680968537477777
30	0.7063162427192686
31	0.7304546337286438
32	0.7533475278503207
33	0.774971854175772
34	0.7953168646201543
35	0.8143832388747152
36	0.8321821063798795
37	0.8487340082163846
38	0.8640678210821209
39	0.8782196643667219
40	0.8912318098179489
41	0.9031516114817353
42	0.9140304715618691
43	0.9239228556561198
44	0.9328853685514262
45	0.9409758994657749
46	0.9482528433672547
47	0.9547744028332993
48	0.9605979728794224
49	0.9657796093226765
50	0.9703735795779884
51	0.9744319933344283
52	0.9780045093342753
53	0.9811381134839128
54	0.9838769627588515
55	0.9862622888164461
56	0.9883323548852008
57	0.9901224593411699
58	0.9916649793892612
59	0.992989448417817
60	0.994122660865348
61	0.9950887988052908
62	0.9959095748953655
63	0.9966043868309472
64	0.9971904789669755
65	0.9976831073124922
66	0.9980957046404045
67	0.9984400429793999
68	0.9987263912544142
69	0.9989636663083864
70	0.9991595759651571