Answer:
270
Explanation:
The average attendance from each school district would be an equal value of students that can be assumed came from each school district. It can be determined by:
average attendance = [tex]\frac{total number of students}{number of schools}[/tex]
Since, there were 4050 total number of students at the museum from 15 different school districts.
Then we have;
average attendance = [tex]\frac{4050}{15}[/tex]
= 270
The average attendance from each school district is 270.