Mary has 11 pairs of socks in her drawer. Each pair is a different color and design, but they are not together as pairs; they are just in her drawer scattered about. With her left hand, Mary reaches in and picks one sock.

a. While holding that one sock in her left hand, Mary reaches into the drawer and picks another sock.What is the probability of her getting a sock that will match the sock in her left hand? ________ (carry to 4 decimal points)