The main competition between the United States and Brazil

According to the data in 1, (1) can be drawn;

(2) Judging from the racial composition data of the United States and Brazil, the proportion of whites in both countries is very large; The colored people in the United States are black, and the colored people in Brazil are mainly mixed-race;

? (3) White people account for 79.96% of the total population of the United States, with a large proportion, while other races account for a small proportion, which reflects the existence of racial discrimination in the United States.

So the answer is: (1)

(2) The proportion of whites is significant; The colored people in the United States are black, and the colored people in Brazil are mainly mixed-race; (3) White people account for 79.96% of the total population of the United States, with a large proportion, while other races account for a small proportion, which reflects the existence of racial discrimination in the United States.