Four spinners

This task is about probability.
In a game four students each have a different spinner.
Each student spins their own spinner 20 times and adds up the total of their scores.
The student with the biggest total wins.
 
vicky
wai
yvonne
zac
Vicky
 
Wai
 
Yvonne
 
Zac
 

Question

a) i) Who is most likely to win the game?

    • vicky
                    Vicky 

    • wai
                     Wai 

    • yvonne
                  Yvonne 

    • zac
                     Zac 

Question 1Change answer

ii) Explain why.

Question 1Change answer

b) Describe two different ways you could change this to make it a fair game.
1.   2.