Rationale
1,119,823
The mean number of people who became legal residents of the United States during the specified five-year period is calculated by averaging the annual totals, resulting in this correct figure. This value represents the average annual immigration rate over the period under consideration.
A) 1,119,823
This choice accurately reflects the mean number of legal residents, calculated by dividing the total number of new legal residents over the five years by five. The computation results in this figure, confirming its correctness as the average annual rate of legal immigration.
B) 223,504
This number may represent a miscalculation or an interpretation of monthly or quarterly data rather than an annual average. It does not reflect the yearly mean of legal residents over the five-year period, which is significantly higher.
C) 5,599,113
This figure likely represents the total number of legal residents over the five-year span rather than the mean. Dividing this total by five years yields the correct average, which is substantially lower than this total, making this choice incorrect.
D) 1,107,126
Though this number is close to the correct mean, it does not accurately represent the calculated average for the five-year period. A slight miscalculation in the data or rounding could account for this discrepancy, but it ultimately does not match the correct mean.
Conclusion
The mean number of legal residents who immigrated to the United States during the five-year period is 1,119,823. This figure is derived from accurate calculations of annual immigration data and serves as a vital statistic for understanding immigration trends. The other options either misinterpret the data or represent incorrect calculations, highlighting the importance of precise data analysis in demographic statistics.