Final answer:
The answer cannot be determined without additional information about the distribution or probability of the students receiving $250 or more from the sample of 200.
Step-by-step explanation:
The question on how many children the juvenile center houses at a time appears to be a part of a larger set of statistical or probability questions. However, it seems there might be some confusion with the provided details, as they pertain to a completely different set of data regarding funds received by a sample of students and the number of people enslaved by certain groups. If we focus on the sample of 200 students and how many are expected to receive $250 or more, we cannot determine the answer without additional information about the distribution or probability of the students receiving that amount. The given options (A, B, C, D) cannot be correctly chosen without this necessary context.