Its about probability
there are two sets of cards
The red set of cards is bigger than the yellow
So the most probable is to pick a red card
Probability goes always between 0 and 1
A probability= 1/2 means equal chances for both
A probability > 1/2 means a red card pickup
A probability < 1/2 means a yellow card pickup
So then the letter that represents a yellow piece is H .
