Final answer:
The estimated population in 2020 is 11,887 and in 2001 is 11,376. Option A
Step-by-step explanation:
To calculate the estimated population in the years 2020 and 2001, we need to use the population growth rate of 2.1% over 4 years. First, we calculate the annual growth rate by dividing 2.1% by 4, which gives us 0.525% per year.
To find the estimated population in 2020, we need to calculate the population increase from 2000 to 2020. We start with the population of 11,171 in 2000 and apply the annual growth rate for 20 years (2020 - 2000 = 20). Each year, the population increases by 0.525%.
For 2001, we apply the annual growth rate for 1 year (1 year after 2000). We start with the population of 11,171 in 2000 and apply the annual growth rate of 0.525% for 1 year to get the estimated population in 2001.
After performing the calculations, we find that the estimated population in 2020 is 11,887 and in 2001 is 11,376. Option a