Analisi: osservato contro atteso

Each statistic on this page is shown next to the value you would expect if the draws were purely random. The expected values are calculated exactly (closed-form formulas over all 8,145,060 combinations), not simulated. The result in advance: everywhere, what we observe stays within the range of chance.

3695 estrazioni · 07/09/1986 – 21/10/2026 · Exact expected values under the hypothesis of uniform 6-from-45 draws

How close together are the six numbers?

The linear span is the distance from the smallest to the largest number (end positions included). The circular span reads the numbers 1 to 45 on a circle where 45 touches 1: the draw 2, 3, 5, 42, 44, 45 is then no longer spread over 44 positions but concentrated on 9. The bars show the distribution of draws by span, observed and expected.

Ampiezza lineare

Media: osservato 34,1, atteso 33,9

Osservato Atteso
6–10 0 / 2,1
11–15 27 / 27,4
16–20 93 / 119,9
21–25 331 / 316,5
26–30 581 / 611,5
31–35 903 / 921,2
36–40 1082 / 1.048,6
41–45 678 / 647,8

Ampiezza circolare

Media: osservato 28,4, atteso 28,4

Osservato Atteso
6–10 1 / 2,6
11–15 36 / 38,3
16–20 184 / 196,5
21–25 661 / 630,3
26–30 1444 / 1.454,4
31–35 1322 / 1.325,3
36–38 47 / 47,6

Le estrazioni più compatte

A circular span of at most 12 has a probability of 0,26% for a random draw. We therefore expected 9,4 such draws; there were 6.

DataNumeri vincenticircolarelineare
15/12/202445414244451042
06/04/2008710111416171111
05/12/20181516172021251111
25/12/1989236373841421241
29/10/199756101315161212
05/06/20223234363738431212
26/01/19922730313234391313
07/03/1999811161719201313
07/01/20012931353740411313
10/06/2001135610131313
05/02/20061381043451345
13/05/20123132353638431313

Cosa si ripete dall'estrazione precedente?

For each draw, we count how many of its six numbers were already in the immediately preceding draw. The expected distribution is hypergeometric: 6 drawn from 45, of which 6 are marked.

Ripetizioni esatte

Media: osservato 0,793, atteso 0,800

Osservato Atteso
0 1512 / 1.479,7
1 1526 / 1.566,7
2 570 / 559,5
3 80 / 82,9
4–6 6 / 5,1

Vicini dell'estrazione precedente

Numero medio di numeri vincenti che sono vicini diretti (±1, in modo circolare) di un numero dell'estrazione precedente, senza esservi stati estratti.

1,341
Osservato
1,338
Atteso

L'ultima estrazione non contiene alcuna informazione sulla successiva. Rigiocare gli ultimi numeri o i loro vicini dà esattamente le stesse probabilità di qualsiasi altra combinazione.

La schedina come mappa di calore

The 45 numbers in five rows of nine. The darker the cell, the more often the number was drawn. The expected value is the same for all; the differences are the normal spread of a binomial distribution.

Da sempre

3695 estrazioni · Atteso: 492,7 / Numero · min 449, max 555

146824613555451455306478752084779473
105061147912481134661447415456165141752518502
194592048321453224742348724500254902652527536
284832948830480314773251433449344833548536482
374893848939526405014147442522435444450245496

Ultime 100 estrazioni

100 estrazioni · Atteso: 13,3 / Numero · min 4, max 21

115220313413518618713811915
1016111212101391416159161417161811
1915201321152292372413251526132712
2811299309312132183316341135213617
377381539194015414421043154494512

The gap between the rarest and the most frequent number looks large, but it is exactly what you expect from 45 independent counts. Over the last 100 draws the relative spread is even larger because the sample is smaller.

Quanto resta assente un numero?

For each number we measure the gap in draws between two appearances. If the draws are independent, this gap follows a geometric distribution with probability 6/45 ≈ 13.3% per draw: mean 7.5, and long absences are not rare, they are the rule.

22125 intervalli misurati · Media: osservato 7,49, atteso 7,50

Osservato Atteso
1 2930 / 2.950,0
2 2566 / 2.556,7
3–4 4107 / 4.136,1
5–7 4464 / 4.356,8
8–10 2823 / 2.836,1
11–15 2634 / 2.703,2
16–20 1350 / 1.321,7
21–30 966 / 962,2
31–40 202 / 230,0
41+ 83 / 72,3

The longest absence in the data is 70 draws. The probability that a given number stays absent that long is 0,01%; with 45 numbers it is bound to happen eventually. The longest current absence is 32 draws. A number that has been absent for a long time is therefore not "due": the balls have no memory.

La mia combinazione

Enter six numbers: has this combination been drawn before? Which draws came closest?

Everything runs in your browser; nothing is stored or sent. That a combination has never been drawn is normal: out of 8,145,060 possible combinations only a tiny fraction has ever come up.

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