Final answer:
The average rate of change of the population over the given time interval is approximately 62.71 people per year.
Step-by-step explanation:
To find the average rate of change of the population over the given time interval, we need to calculate the difference in population between 2001 and 1980, and then divide it by the number of years in that time interval.
Population in 2001: 32,511
Population in 1980: 31,194
Difference in population: 32,511 - 31,194 = 1,317
Number of years in the time interval: 2001 - 1980 = 21 years
Average rate of change of the population = Difference in population / Number of years in the time interval
Substituting the values, Average rate of change of the population = 1,317 / 21 = 62.71
Therefore, the average rate of change of the population over the given time interval is approximately 62.71 people per year.