2022 EmpireTech Chirstmas Sales

Ok, somebody check my math. I've done my best to compute the odds of winning and if I'm even close in my math you won't get these odds with Powerball! Very generous Andy!

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Good luck everyone :)
 
Ok, somebody check my math. I've done my best to compute the odds of winning and if I'm even close in my math you won't get these odds with Powerball! Very generous Andy!

PrizeTotal TicketsWinning TicketsOdds of Winning
(1 ticket)
Odds of Winning
(2 tickets)
Odds of Winning
(3 tickets)
Grand Prize
365​
1​
0.3%​
0.5%​
0.8%​
Special
365​
2​
0.5%​
1.1%​
1.6%​
1st
365​
12​
3.3%​
6.5%​
9.5%​
2nd
365​
12​
3.3%​
6.5%​
9.5%​
3rd
365​
10​
2.7%​
5.4%​
8.0%​
4th
365​
15​
4.1%​
8.1%​
11.8%​
5th (US)
365​
7​
1.9%​
3.8%​
5.6%​
5th (non-US)
365​
17​
4.7%​
9.1%​
13.3%​
Any 1st-4th
365​
52​
14.2%​
26.5%​
36.9%​
Any (US)
365​
59​
16.2%​
29.7%​
41.1%​
Any (non-US)
365​
69​
18.9%​
34.2%​
46.7%​
For you statistic nerds, here's my calculation:


Odds of losing: (<total tickets> - <winning tickets>) / <total tickets>
So, for 1st Prize there are 365 total tickets with 12 winning tickets to be drawn. Odds of losing = (365 - 12) / 365 = 0.967 or 96.7%

Odds of winning with 1 ticket is 1 - <odds of losing>.
So, for 1st Prize odds of winning are 1 - .9671 = .0329 or 0.3%

Odds of winning with 2 tickets is 1 - <odds of losing>^2.
So, for 1st Prize odds of winning with 2 tickets are 1 - .9671^2 = 0.0647 or 6.5%

Odds of winning with 3 tickets is 1 - <odds of losing>^3.
So, for 1st Prize odds of winning with 3 tickets are 1 - .9671^3 = 0.0954 or 9.5%

Unless he's putting the tickets back in, IE: someone can win more than once. The odds change as the drawing goes on. no?