In BC/49 under the 6/49 + 1/49 · since Nov 2024 rules — 205 draws, 6 from 1–49.
19times drawn · chance expected 25 −1.30σ
0draws waiting — it came up last time
11.2average wait between appearances · chance says 8.2
26longest completed wait · 50% chance of one at least that long
31 is drawn as often as chance explains
Drawn 19 times in 205 draws against 25.1 expected, −1.30σ. Each draw is independent: after 0 draws away it is exactly as likely tonight as a number drawn yesterday. It has also come out as the bonus ball 5 times, counted separately.
31
Number 31, draw by draw
Drawn 19 times in 205 draws · average wait 11.2 draws · longest completed wait 26 · drawn in the most recent draw
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 31 has a favourite seat — chance gives a large number the high positions more often. That is the shape of sorting, not of the machine.
Never drawn alongside 7 of the other 48 numbers; chance expects about 7 such strangers by now. Every pair →
How many people play it
Under the crowd model, 31 is picked about 1.22× as often as an indifferent choice — 15th 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.
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: 31 is drawn with probability 6/49 tonight whatever it did last week.