Can you believe Liu Daogan Kun?

Official website, the National Anti-fraud Center, showed that "Gankun Six Stock Selection Index" was an investment and financial fraud of 202 1. On 202 1, the police cracked the fraud case and prevented people from being cheated. Index is a concept to explain the quantitative characteristics of the population, and it is the synthesis of its values, so it is also called comprehensive index. In practical statistical work and statistical theory research, the concept of explaining the quantitative characteristics of the population is called index.