Most students at the school go by bus, with 57% taking the bus according to a survey of three classes. The arithmetic means for transportation methods were: on foot 4, by car 6, by bike 0, and by bus 15. The medians were: on foot 5, by car 5, by bike 0, and by bus 16. The mode for all classes was the bus. As a result, the school has a small ecological footprint since many students take the bus instead of private cars.

1. HOW DO YOU GO
TO
SCHOOL?

2. By bus By car By bike On foot
1A/1B 16 4 1 4
2A 17 5 0 5
3A 13 10 0 5

3. By bike
By car
By bus
On foot
17%
25%
1%
57%

4. ARITHMETIC MEAN FOR CLASS
On foot 5+5+4=14
14:3=4,(6)
By car 10+5+4=19
19:3=6,(3)
By bike 1+0+0=1
1:3=0,(3)
By bus 17+13+16=46
46:3=15,(3)
MEDIAN FOR CLASS
On foot 4,5,5=5
By car 4,5,10=5
By bike 0,0,1=0
By bus 13,16,17=16
MODE
All 46 use the bus

5. RESULTS
Our school has got a small "ecological footprint"
because a lot of us take the school bus instead
of using private car to go to school.