R2 is an English abbreviation, which usually refers to the second value of "correlationcoefficient". Is a statistic used to measure the strength and direction of the linear relationship between two variables. It is often used in mathematics and statistics.

2. The risk level of purchasing wealth management products is R2. Risk grade R2 represents a wealth management product with controllable risks, which does not guarantee repayment of principal, but the probability of loss of principal is also very low, so it is suitable for stable investment users.