It depends on how many tickets you buy and the total number of tickets in the draw. As an example, let's say you brought a strip of 5 tickets, and you know there are 500 tickets in the draw. That means the probability of winning the first prize is 5/500 = 0.01 = 1%. Then the second prize probability is 4/499 = 0.008 = 0.8%, and so on. The probability of winning all prizes is the sum of all these probabilities: 1% + 0.8% + 0.6% + 0.4% + 0.2% = 3%.
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