You bought five, 1- The probability of missing five = the probability of winning the prize.
The calculation is as follows:1-0.9 * 0.9 * 0.9 = 0.40951= 40.955438+0%.
So the probability that you can win the prize is 40.95 1%.
The probability of one is:
The probability of winning 2 is:
The probability of winning all five pictures is:
The probability of winning the prize is one in 100,000, which is almost impossible.