Final answer:
To find the probability that one person will win prizes if that person buys tickets, we need to know the total number of tickets sold and the number of prizes available to be won.
Step-by-step explanation:
To find the probability that one person will win prizes if that person buys tickets, we need to know the total number of tickets sold and the number of prizes available to be won. Let's assume that there are 'n' tickets sold and 'm' prizes available. The probability can be calculated using the formula:
Probability of winning = (Number of prizes available) / (Total number of tickets sold)
In this case, let's take an example. Suppose there are 100 tickets sold and there are 5 prizes available. The probability of winning would be:
Probability of winning = 5 / 100 = 1/20