What are large cardinality and small cardinality?

The large cardinal number and the small cardinal number are the balance difference of body index. Among them, the large base refers to those who are overweight by 20 kg or more, and the small base refers to those who are overweight 10 kg. It can be basically equivalent to body mass index, also called body mass index. When calculating the base number, you need to know the height and weight, calculate the body mass index value, and then compare the standard weight.