A stable has all American Quarter Horses. There are 21 bays, 11 blacks, and 5 red duns. (Use these data for this question only.

A stable has all American Quarter Horses. There are 21 bays, 11 blacks, and 5 red duns. (Use these data for this question only.)

What is the probability that you randomly select a black, don't put the black back, then draw another black, don't put that black back, and then draw another black quarter horse?

(If necessary, round answer to 4 decimal places)