To determine which school has an estimated difference of 1,000 between the number of boys and the number of girls, we need to subtract the number of girls from the number of boys for both School A and School B.
School A:
Number of Boys: 2 , 564
Number of Girls: 1 , 200
Difference: 2 , 564 − 1 , 200 = 1 , 364
School B:
Number of Boys: 1 , 120
Number of Girls: 2 , 050
Difference: 1 , 120 − 2 , 050 = − 930
The difference for School A is 1 , 364 , and for School B, it's − 930 , which indicates more girls than boys in School B.
Since neither school has a difference of exactly 1 , 000 , School A is closest with a difference of 1 , 364 , but it exceeds the 1,000 mark. Therefore, based on the data provided, there is no exact match for an estimated difference of 1,000. However, School A is the closest.