To determine what percent of the 21-40 age group was for the candidate, let's break down the process step by step.
1. Identify the relevant data from the table for the 21-40 age group:
- Number of people who were "For" the candidate: 30
- Number of people who were "Against" the candidate: 12
- Number of people with "No Opinion": 8
2. Calculate the total number of people in the 21-40 age group:
[tex]\[
\text{Total number of people} = \text{For} + \text{Against} + \text{No Opinion}
\][/tex]
Substituting the given values:
[tex]\[
\text{Total number of people} = 30 + 12 + 8 = 50
\][/tex]
3. Calculate the percentage of people in the 21-40 age group that was for the candidate:
[tex]\[
\text{Percentage of people who were "For"} = \left(\frac{\text{For}}{\text{Total number of people}}\right) \times 100
\][/tex]
Substituting the values:
[tex]\[
\text{Percentage of people who were "For"} = \left(\frac{30}{50}\right) \times 100 = 0.6 \times 100 = 60\%
\][/tex]
Therefore, the percentage of the 21-40 age group that was for the candidate is:
[tex]\[
\boxed{60}
\][/tex]
