Final answer:
Pooling money to buy lottery tickets increases the probability of winning, but does not guarantee a win.
Step-by-step explanation:
The correct answer is a)Increases probability. When pooling money to buy lottery tickets, the probability of winning increases. By pooling their money, a group of people can buy more tickets, which in turn increases the chances of winning. However, it's important to note that while pooling money increases the probability of winning, it does not guarantee a win.