Birthday problem
Calculating the probability

Birthday problem

Section Title: Calculating the probability
Table Section Text: None

n	p(n)

1	0.0%

5	2.7%

10	11.7%

20	41.1%

23	50.7%

30	70.6%

40	89.1%

50	97.0%

60	99.4%

70	99.9%

75	99.97%

100	99.99997%

200	99.9999999999999999999999999998%

300	(100 − 6×10−80)%

350	(100 − 3×10−129)%

365	(100 − 1.45×10−155)%

≥ 366	100%

Sentence(s)

99.9% probability is reached with just 70 people in the Birthday problem.

final_sentence: 99.9% probability is reached with just 70 people in the Birthday problem.