Random password: RAroarscum
10 char (entropy-bits: known=33, unknown= 60- 65): RAroarscum
15 char (entropy-bits: known=49, unknown= 90- 98): sorepeatWgoshZA
20 char (entropy-bits: known=66, unknown=120-131): half7@%bibs6mimegene
known = known pattern of x words with x chars
8 char all random (entropy-bits=48): NyvifDyc
32 char all random (entropy-bits=192): 3NW@9pe+VE4z+ed-F-r&ztDws=M$X#7N

Also see:
GRC for completely random passwords
Lastpass web embedded auto password management
Password wallet multi platform password app for password management
OS X Password managers desktop apps.