Answer :
21 years old person picked at random did indicate that the town should build a high school.
Step by Step explanation:
The Problem statement has been added already in the details of this question. Please refer to that. The table for this problem statement is attached.
So, as asked :
An eligible voter is picked at random. If this person is 21 years old, do you think he would indicate that the town should build a high school? Why or why not
As we can see in the table, the age group of 18-25 years old also contains a person aged 21 years.
And we can see that:
Majority of the eligible voters in the age group of 18-25 years old said yes. Mainly , total of 61 out of 75 eligible voters in this age group said "yes" meaning that a 21 years old in this age group would also have said "yes".
Which means the 21 years old indicated the town should actually build a high school.