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This is the US Powerball (5 from 69 + 1 from 26). Looking for South Africa's PowerBall? 🇿🇦 SA PowerBall · 🇺🇸 Mega Millions

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 11,238,513 combinations), not simulated. The result in advance: everywhere, what we observe stays within the range of chance.

1423 estrazioni · 07/10/2015 – 21/10/2026 · Exact expected values under the hypothesis of uniform 5-from-69 draws

How close together are the five 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 69 on a circle where 69 touches 1: the draw 4, 5, 7, 67, 69 is then no longer spread over 66 positions but concentrated on 10. The bars show the distribution of draws by span, observed and expected.

Ampiezza lineare

Media: osservato 47,7, atteso 47,7

Osservato Atteso
5–9 0 / 0,5
10–14 3 / 4,7
15–19 21 / 15,6
20–24 33 / 35,0
25–29 67 / 62,9
30–34 100 / 97,8
35–39 128 / 136,7
40–44 170 / 174,9
45–49 205 / 206,0
50–54 221 / 222,4
55–59 219 / 214,5
60–64 166 / 171,4
65–69 90 / 80,5

Ampiezza circolare

Media: osservato 39,2, atteso 39,1

Osservato Atteso
5–9 0 / 0,6
10–14 3 / 5,6
15–19 30 / 20,5
20–24 50 / 50,6
25–29 98 / 101,5
30–34 176 / 178,6
35–39 278 / 286,2
40–44 375 / 381,0
45–49 336 / 318,7
50–54 76 / 79,2
55–56 1 / 0,4

Le estrazioni più compatte

A circular span of at most 10 has a probability of 0,08% for a random draw. We therefore expected 1,1 such draws; there were 0.

DataNumeri vincenticircolarelineare
19/07/201750515961631414
01/01/202049535759621414
10/01/202214171821271414
16/09/201717182425311515
18/04/20189101217231515
25/11/20202575860651564
08/05/202112172021261515
02/06/2021671166671562
08/02/202352585964661515
11/10/202513161820271515
25/02/202650525456641515
17/10/20183576468691667

Cosa si ripete dall'estrazione precedente?

For each draw, we count how many of its five numbers were already in the immediately preceding draw. The expected distribution is hypergeometric: 5 drawn from 69, of which 5 are marked.

Ripetizioni esatte

Media: osservato 0,350, atteso 0,362

Osservato Atteso
0 972 / 964,7
1 404 / 402,0
2 44 / 52,7
3 2 / 2,6
4–5 0 / 0,0

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.

0,650
Osservato
0,659
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 69 numbers in rows of ten. 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

1423 estrazioni · Atteso: 103,1 / Numero · min 78, max 128

19521033114410059461097968979961095
11100121061378149715971611217102181051910520102
2112822922311924101259126832711828121299530103
31101321203311834853593361183711338973910940105
419242101439944113451024684471134893498450103
51925211053114541005595561015710158100591136095
6112662113631176412565946610267104689969117

Ultime 100 estrazioni

100 estrazioni · Atteso: 7,2 / Numero · min 3, max 14

13263124105668778697107
115126138141215516101711188196204
21112242342482572652752862973011
3173273343433543610378388393406
418421443544104554664794884975010
515529536546551056957115895911606
61762363864126511664676685695

The gap between the rarest and the most frequent number looks large, but it is exactly what you expect from 69 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 5/69 ≈ 7.2% per draw: mean 13.8, and long absences are not rare, they are the rule.

7046 intervalli misurati · Media: osservato 13,69, atteso 13,80

Osservato Atteso
1 498 / 510,6
2 472 / 473,6
3–4 911 / 846,7
5–7 1027 / 1.053,6
8–10 819 / 840,7
11–15 1076 / 1.041,0
16–20 706 / 714,7
21–30 808 / 827,5
31–40 375 / 390,0
41+ 354 / 347,7

The longest absence in the data is 112 draws. The probability that a given number stays absent that long is 0,02%; with 69 numbers it is bound to happen eventually. The longest current absence is 45 draws. A number that has been absent for a long time is therefore not "due": the balls have no memory.

La mia combinazione

Enter five 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 11,238,513 possible combinations only a tiny fraction has ever come up.

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