Equal chance if the ace is not a picture. Else higher chance for a picture.

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A standard deck has 52 cards (excluding jokers).

Divided by three are 3, 6 and 9.

=> 3 * 4 (suits) = 12 / 52

Of these the jack, queen and king are picture.

=> 3 * 4 (suits) = 12 / 52

If the ace is also a picture, the change for a picture is 16 / 52