r/Probability
Birthday Probability Task
en
N/A
If you have 25 people in one room, what's the chance at least 2 of them will have birthday on the same day? It's a non-leap year.
3,411
January 1, 2009
public
all_ads
Total Submissions
1,609
Total Comments
4,755
Earliest Submission
April 20, 2011
Earliest Comment
June 27, 2011
Rank↕ | Word↕ | Occurrences in Subreddit | Total Occurrences | Rate in Subreddit (per 1M words) | Rate in Reddit (per 1M words) | Ratio (Sub Rate / Reddit Rate) |
|---|---|---|---|---|---|---|
| #1 | 41 | 18,708 | 459.7 | 0.2 | 2946.99 | |
| #2 | 35 | 22,052 | 392.4 | 0.2 | 2134.23 | |
| #3 | 105 | 89,532 | 1177.3 | 0.7 | 1577.00 | |
| #4 | 879 | 963,502 | 9856.0 | 8.0 | 1226.76 | |
| #5 | 36 | 110,382 | 403.7 | 0.9 | 438.56 | |
| #6 | 48 | 266,342 | 538.2 | 2.2 | 242.34 | |
| #7 | 118 | 827,670 | 1323.1 | 6.9 | 191.71 | |
| #8 | 42 | 303,018 | 470.9 | 2.5 | 186.38 | |
| #9 | 142 | 1,328,935 | 1592.2 | 11.1 | 143.68 | |
| #10 | 33 | 312,195 | 370.0 | 2.6 | 142.14 | |
| #11 | 42 | 416,174 | 470.9 | 3.5 | 135.71 | |
| #12 | 31 | 307,202 | 347.6 | 2.6 | 135.69 | |
| #13 | 223 | 2,353,015 | 2500.4 | 19.6 | 127.44 | |
| #14 | 35 | 387,416 | 392.4 | 3.2 | 121.48 | |
| #15 | 178 | 2,216,223 | 1995.9 | 18.5 | 108.00 | |
| #16 | 33 | 439,537 | 370.0 | 3.7 | 100.96 | |
| #17 | 119 | 1,867,408 | 1334.3 | 15.6 | 85.69 | |
| #18 | 34 | 542,404 | 381.2 | 4.5 | 84.29 | |
| #19 | 60 | 983,762 | 672.8 | 8.2 | 82.01 | |
| #20 | 34 | 561,125 | 381.2 | 4.7 | 81.48 | |
| #21 | 39 | 664,918 | 437.3 | 5.5 | 78.87 | |
| #22 | 81 | 1,518,015 | 908.2 | 12.7 | 71.75 | |
| #23 | 47 | 918,091 | 527.0 | 7.7 | 68.84 | |
| #24 | 254 | 6,410,784 | 2848.0 | 53.5 | 53.28 | |
| #25 | 92 | 2,585,432 | 1031.6 | 21.6 | 47.85 | |
| #26 | 31 | 881,753 | 347.6 | 7.4 | 47.28 | |
| #27 | 36 | 1,080,697 | 403.7 | 9.0 | 44.79 | |
| #28 | 61 | 1,971,450 | 684.0 | 16.4 | 41.61 | |
| #29 | 42 | 1,469,574 | 470.9 | 12.3 | 38.43 | |
| #30 | 56 | 1,978,209 | 627.9 | 16.5 | 38.07 | |
| #31 | 64 | 2,412,698 | 717.6 | 20.1 | 35.67 | |
| #32 | 50 | 2,327,112 | 560.6 | 19.4 | 28.89 | |
| #33 | 37 | 1,860,555 | 414.9 | 15.5 | 26.74 | |
| #34 | 42 | 2,143,327 | 470.9 | 17.9 | 26.35 | |
| #35 | 56 | 3,034,114 | 627.9 | 25.3 | 24.82 | |
| #36 | 72 | 3,910,270 | 807.3 | 32.6 | 24.76 | |
| #37 | 424 | 23,381,148 | 4754.2 | 195.0 | 24.38 | |
| #38 | 63 | 3,545,441 | 706.4 | 29.6 | 23.89 | |
| #39 | 72 | 4,351,091 | 807.3 | 36.3 | 22.25 | |
| #40 | 37 | 2,261,654 | 414.9 | 18.9 | 22.00 | |
| #41 | 68 | 4,220,956 | 762.5 | 35.2 | 21.66 | |
| #42 | 47 | 2,943,053 | 527.0 | 24.5 | 21.47 | |
| #43 | 311 | 19,551,021 | 3487.2 | 163.0 | 21.39 | |
| #44 | 54 | 3,469,306 | 605.5 | 28.9 | 20.93 | |
| #45 | 43 | 2,879,040 | 482.1 | 24.0 | 20.08 | |
| #46 | 330 | 23,968,203 | 3700.2 | 199.9 | 18.51 | |
| #47 | 49 | 3,621,083 | 549.4 | 30.2 | 18.20 | |
| #48 | 47 | 3,557,251 | 527.0 | 29.7 | 17.77 | |
| #49 | 195 | 14,786,702 | 2186.5 | 123.3 | 17.73 | |
| #50 | 543 | 41,277,164 | 6088.5 | 344.2 | 17.69 |