Question

What is the average (mean) age of students in the building? Answer to one decimal place

Answer 1

4.3

Explanation:

mean=sum of the terms/number of term

room A=3+20+25+0+0+0=25

Room B= 2+18+4+0+0+0=24

room C= 28

room D= 21

room E= 32

step(2)

25+24+28+21+31=130/30

= 4.3