In Eurojackpot under the 5/50 + 2/8 · Mar 2012 – Oct 2014 rules — 133 draws, 5 from 1–50 (an earlier era).
18times drawn · chance expected 13 +1.36σ
18draws waiting · a wait this long: 17% for any number
6.6average wait between appearances · chance says 10.0
34longest completed wait · 41% chance of one at least that long
7 is drawn as often as chance explains
Drawn 18 times in 133 draws against 13.3 expected, +1.36σ. Each draw is independent: after 18 draws away it is exactly as likely tonight as a number drawn yesterday.
7
Number 7, draw by draw
Drawn 18 times in 133 draws · average wait 6.6 draws · longest completed wait 34 · waiting 18 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 7 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 10 of the other 49 numbers; chance expects about 11 such strangers by now. Every pair →
How many people play it
Under the crowd model, 7 is picked about 1.54× as often as an indifferent choice — 1st most popular of 50. 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: 7 is drawn with probability 5/50 tonight whatever it did last week.