Final answer:
Without Table 28-2, it's not possible to calculate the specific unemployment rate for Aridia in 2011. The general method to determine the unemployment rate involves dividing the number of unemployed by the labor force, then multiplying by 100.
Step-by-step explanation:
To calculate the unemployment rate of Aridia in 2011 using the provided information in Table 28-2, we need to know the number of unemployed persons and the total labor force for that year. Unfortunately, Table 28-2 is not present here, making it impossible to compute the exact unemployment rate for Aridia in 2011. However, the concept of calculating the unemployment rate typically involves dividing the number of unemployed people by the total number of people in the labor force and then multiplying by 100 to get a percentage as shown in the provided reference information.
For instance, using the formula with the sample numbers provided, the unemployment rate is calculated by dividing 14.8 (unemployed persons) by 153.9 (total labor force), which equals approximately 9.6%. It is important to note that this is an example calculation and is not the unemployment rate for Aridia in 2011 without the actual figures from Table 28-2.