There is a smaller chance of winning because the chance is 3/10
There is a greater chance of winning because the chance is 7/10
The player for the spinner ame has a 4/9 chance of winning. The person with the greater chace of winning a prize is the player who plays the marble game has a better chance of winning. The chances are... Marble Game= 63/90. Spinner Game=40/90. So in conclusion if you play the marble game you will have the advantage over the spinner game to win a prize.