box A has 3 red marbels, and 2 yellow marbels. box B has 2 red marbels and 1 yellow marbel Which box has a greater chance of picking a red marbel from it?

you have a greater chance with box B.

(Red marbles/total marbles in box)

box A:

3 red marbles/5 marbles

box B:

2 red marbles/3 marbles

You have GREATER chance with box b because there is only 1 yellow marble and there is 2 red marbles so most of the marbles are red,but box a has almost the same amount of red and yellow marbles.