In PowerBall under the 5/50 + 1/20 · since Jun 2018 rules — 867 draws, 1 from 1–20.
37times drawn · chance expected 43 −0.99σ
46draws waiting · a wait this long: 10% for any number
22.3average wait between appearances · chance says 20.0
62longest completed wait · 80% chance of one at least that long
9 is drawn as often as chance explains
Drawn 37 times in 867 draws against 43.4 expected, −0.99σ. Each draw is independent: after 46 draws away it is exactly as likely tonight as a number drawn yesterday.
9
Number 9, draw by draw
Drawn 37 times in 867 draws · average wait 22.3 draws · longest completed wait 62 · waiting 46 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 9 has a favourite seat — chance gives a small number the low positions more often. That is the shape of sorting, not of the machine.
Never drawn alongside 19 of the other 19 numbers; chance expects about 19 such strangers by now. Every pair →
How many people play it
Under the crowd model, 9 is picked about 1.48× as often as an indifferent choice — 2nd most popular of 20. 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: 9 is drawn with probability 1/20 tonight whatever it did last week.
PowerBall number 9 (star deck) — how often, how long a wait, and with whom — LotteryOracle