Chailai likes a romantic kiss but not a lipstick smear, and only from her
boyfriend. She wears lipstick every second day but it will only smudge
within the first two hours. Chailai also has a boyfriend she sees every day,
but in the morning only on weekends. Can you estimate her risk each week
of suering a lipstick smearing kiss? (Assume he morning" is the six hours
from 6oClock to Noon.)