Pocket money

This task is about comparing two dot plots.
Two school classes graphed how much pocket money each student got.
They compared their graphs.

Question

graph of room 4 and room 5
 
a)  In which class do students usually get more pocket money?

    • Room 4

    • Room 5

    • You cannot tell which class has students who usually get more pocket money.

    • Students in Room 4 get about the same amount of money as students in Room 5.

b) Use the two graphs to explain why you choose your answer.