I think Risk tolerance refers to an individual's willingness to take risks or the amount of risk they feel comfortable taking. In the case of lotteries, risk tolerance can play a role in how much money someone is willing to spend on lottery tickets and how often they play. It is possible that someone with a high risk tolerance may be more likely to spend a larger amount of money on lottery tickets than someone with a low risk tolerance, as they are more comfortable with the possibility of losing money in exchange for the potential of a large payout.