Number 20

In Lotto under the 6/49 + 1/49 · Jan 2010 – Aug 2017 rules — 789 draws, 6 from 1–49 (an earlier era).

99times drawn · chance expected 97 +0.26σ

9draws waiting · a wait this long: 35% for any number

7.8average wait between appearances · chance says 8.2

63longest completed wait · 3% chance of one at least that long

20 is drawn as often as chance explains

Drawn 99 times in 789 draws against 96.6 expected, +0.26σ. Each draw is independent: after 9 draws away it is exactly as likely tonight as a number drawn yesterday. It has also come out as the bonus ball 9 times, counted separately.

Number 20, draw by draw

Drawn 99 times in 789 draws · average wait 7.8 draws · longest completed wait 63 · waiting 9 draws now

a completed wait — darker is longer the wait still running — a lower bound, not a finished gap

Where it lands in a sorted draw

Sort a draw and 20 has a favourite seat — chance gives a small number the low positions more often. That is the shape of sorting, not of the machine.

1st smallest8 · chance 6.9
2nd smallest26 · chance 26.1
3rd smallest33 · chance 36.1
4th smallest17 · chance 22.7
5th smallest13 · chance 6.5
6th smallest2 · chance 0.7

Every position’s lane →

The company it keeps

Seen most often with these — chance gives every partner about 10.3 shared draws, and the leaders are simply the ones that came out ahead this time.

44 1 9 13 17 18

It has shared a draw with every one of the other 48 numbers; chance expected about 0.0 still unmet by now. Every pair →

How many people play it

Under the crowd model, 20 is picked about 1.28× as often as an indifferent choice — 13th most popular of 49. That changes nothing about whether it comes up, and everything about how many ways a jackpot on it would be shared.

Numbers 1–31 — the birthday zone ×1.22
Round numbers (multiples of 10) ×1.05

The model and its sources → · What people believe about 20 →

Every draw it appeared in

Date	Wait	Position	The draw
2017-06-28	20	2nd	15 20 25 29 30 47
2017-04-19	2	2nd	13 20 26 35 39 48
2017-04-12	7	4th	6 15 18 20 26 43
2017-03-18	3	5th

What this cannot tell you

Nothing here predicts the next draw. A number’s history is a record of a fair machine’s past, and the machine keeps none of it: 20 is drawn with probability 6/49 tonight whatever it did last week.

2015-11-07	2	6th	1 3 4 7 16 20
2015-10-31	3	2nd	1 20 24 30 39 44
2015-10-21	16	3rd	13 14 20 30 33 38
2015-08-26	4	2nd	11 20 21 30 37 42
2015-08-12	6	2nd	6 20 25 29 32 35
2015-07-22	14	1st	20 23 40 43 47 49
2015-06-03	2	3rd	16 18 20 21 23 39
2015-05-27	9	2nd	2 20 22 30 36 43
2015-04-25	11	4th	3 4 6 20 25 36
2015-03-18	2	3rd	6 8 20 23 35 39
2015-03-11	2	3rd	4 18 20 22 33 46
2015-03-04	7	3rd	13 18 20 29 33 43
2015-02-07	12	3rd	4 15 20 30 38 42
2014-12-27	63	2nd	15 20 24 27 37 43
2014-05-21	2	4th	3 11 19 20 23 44
2014-05-14	4	4th	9 12 18 20 32 34
2014-04-30	2	2nd	18 20 21 26 35 45
2014-04-23	1	2nd	14 20 26 39 42 48
2014-04-19	13	2nd	9 20 23 33 38 44
2014-03-05	17	2nd	4 20 23 30 33 34
2014-01-04	4	2nd	13 20 22 24 46 48
2013-12-18	12	5th	4 6 9 16 20 31
2013-11-06	12	2nd	17 20 32 36 37 41
2013-09-25	1	4th	3 9 13 20 40 41
2013-09-21	11	2nd	1 20 33 37 41 45
2013-08-14	16	2nd	18 20 21 32 33 35
2013-06-19	38	1st	20 23 26 27 44 46
2013-02-06	11	3rd	8 18 20 25 37 38
2012-12-29	16	5th	1 3 8 17 20 22
2012-11-03	3	3rd	7 8 20 28 41 42
2012-10-24	2	3rd	7 16 20 24 33 41
2012-10-17	6	3rd	6 14 20 26 30 42
2012-09-26	12	4th	1 6 17 20 23 29
2012-08-15	6	6th	1 5 15 16 18 20
2012-07-25	3	1st	20 24 30 40 41 44
2012-07-14	9	2nd	12 20 22 27 40 44
2012-06-13	4	4th	9 14 16 20 41 43
2012-05-30	25	2nd	3 20 22 34 38 46
2012-03-03	9	3rd	9 15 20 29 33 41
2012-02-01	7	4th	9 11 12 20 31 34
2012-01-07	5	4th	5 7 11 20 27 36
2011-12-21	4	2nd	15 20 22 29 36 48
2011-12-07	10	3rd	4 8 20 21 39 44
2011-11-02	4	4th	10 11 12 20 34 39
2011-10-19	5	3rd	2 11 20 39 44 45
2011-10-01	9	5th	11 13 15 16 20 25
2011-08-31	4	2nd	16 20 25 32 38 44
2011-08-17	1	3rd	1 2 20 21 42 49
2011-08-13	1	2nd	11 20 22 23 28 33
2011-08-10	4	1st	20 21 34 39 47 49
2011-07-27	1	1st	20 21 33 40 41 44
2011-07-23	4	2nd	2 20 23 27 31 49
2011-07-09	5	5th	6 12 17 18 20 43
2011-06-22	3	3rd	7 17 20 25 29 39
2011-06-11	11	1st	20 27 28 34 38 45
2011-05-04	6	1st	20 28 37 39 46 48
2011-04-13	3	4th	15 16 18 20 21 35
2011-04-02	13	5th	1 2 9 17 20 28
2011-02-16	2	2nd	3 20 29 35 44 46
2011-02-09	7	3rd	1 9 20 22 23 26
2011-01-15	3	3rd	1 3 20 30 34 46
2011-01-05	16	5th	1 4 8 12 20 33
2010-11-06	4	2nd	13 20 21 34 41 45
2010-10-23	3	5th	8 12 17 19 20 36
2010-10-13	2	5th	4 12 13 17 20 38
2010-10-06	7	5th	1 10 13 17 20 47
2010-09-11	9	2nd	13 20 31 32 36 38
2010-08-11	3	3rd	1 14 20 26 39 46
2010-07-31	20	3rd	8 14 20 22 28 49
2010-05-22	1	5th	3 5 9 14 20 36
2010-05-19	3	1st	20 26 30 32 34 41
2010-05-08	3	2nd	12 20 22 27 38 44
2010-04-28	11	3rd	10 16 20 41 42 48
2010-03-20	10	3rd	6 12 20 28 38 43
2010-02-13	—	3rd	17 18 20 30 40 42