Answer: The required probability that Jason wins all the 3 prizes is 2.96%.
Step-by-step explanation: Given that Jason bought 10 of the 30 raffle tickets for a drawing.
We are to find the probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize it is thrown away.
Let S denote the sample space for the experiment of drawing 3 tickets from 30 raffle tickets and A denote the event that Jason wins all the 3 prizes.
Since a raffle ticket is thrown away once it wins a prize, so

Therefore, the probability of event A is given by

Thus, the required probability that Jason wins all the 3 prizes is 2.96%.